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  1. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 17
    Date: 1874
    Page Range: 175--211
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  2. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 16
    Date: 1873
    Page Range: 16--25
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  3. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 21
    Date: 1878
    Page Range: 81--114
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  4. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 14
    Date: 1892
    Page Range: 143--144
    Publication info: Leyden,E.J. Brill.
  5. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 9
    Date: 1887
    Page Range: 219--222
    Publication info: Leyden,E.J. Brill.
  6. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 35
    Date: 1913
    Page Range: 200--200
    Publication info: Leyden,E.J. Brill.
  7. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 35
    Date: 1913
    Page Range: 176--176
    Publication info: Leyden,E.J. Brill.
  8. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 36
    Date: 1914
    Page Range: 163--164
    Publication info: Leyden,E.J. Brill.
  9. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 16
    Date: 1873
    Page Range: 224--228
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  10. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 19
    Date: 1876
    Page Range: 43--50
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  11. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 34
    Date: 1912
    Page Range: 183--184
    Publication info: Leyden,E.J. Brill.
  12. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 12
    Date: 1890
    Page Range: 29--40
    Publication info: Leyden,E.J. Brill.
  13. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 14
    Date: 1892
    Page Range: 45--48
    Publication info: Leyden,E.J. Brill.
  14. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 18
    Date: 1896
    Page Range: 131--133
    Publication info: Leyden,E.J. Brill.
  15. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 10
    Date: 1888
    Page Range: 175--176
    Publication info: Leyden,E.J. Brill.
  16. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 15
    Date: 1893
    Page Range: 141--143
    Publication info: Leyden,E.J. Brill.
  17. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 3
    Date: 1881
    Page Range: 29--30
    Publication info: Leyden,E.J. Brill.
  18. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 3
    Date: 1881
    Page Range: 77--78
    Publication info: Leyden,E.J. Brill.
  19. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 3
    Date: 1881
    Page Range: 158--160
    Publication info: Leyden,E.J. Brill.
  20. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 10
    Date: 1888
    Page Range: 253--254
    Publication info: Leyden,E.J. Brill.
  21. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 3
    Date: 1881
    Page Range: 5--6
    Publication info: Leyden,E.J. Brill.
  22. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 19
    Date: 1897
    Page Range: 133--134
    Publication info: Leyden,E.J. Brill.
  23. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 3
    Date: 1881
    Page Range: 39--40
    Publication info: Leyden,E.J. Brill.
  24. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 3
    Date: 1881
    Page Range: 15--16
    Publication info: Leyden,E.J. Brill.
  25. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 14
    Date: 1892
    Page Range: 1--6
    Publication info: Leyden,E.J. Brill.
  26. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 2
    Date: 1880
    Page Range: 217--219
    Publication info: Leyden,E.J. Brill.
  27. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 7
    Date: 1885
    Page Range: 29--30
    Publication info: Leyden,E.J. Brill.
  28. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 4
    Date: 1882
    Page Range: 190--192
    Publication info: Leyden,E.J. Brill.
  29. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 34
    Date: 1912
    Page Range: 175--176
    Publication info: Leyden,E.J. Brill.
  30. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 2
    Date: 1880
    Page Range: 246--248
    Publication info: Leyden,E.J. Brill.
  31. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 11
    Date: 1889
    Page Range: 1--2
    Publication info: Leyden,E.J. Brill.
  32. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 58
    Date: 1915
    Page Range: 244--250
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  33. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 35
    Date: 1913
    Page Range: 224--224
    Publication info: Leyden,E.J. Brill.
  34. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 2
    Date: 1880
    Page Range: 220--224
    Publication info: Leyden,E.J. Brill.
  35. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 12
    Date: 1890
    Page Range: 135--139
    Publication info: Leyden,E.J. Brill.
  36. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 10
    Date: 1888
    Page Range: 201--206
    Publication info: Leyden,E.J. Brill.
  37. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 10
    Date: 1888
    Page Range: 193--197
    Publication info: Leyden,E.J. Brill.
  38. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 15
    Date: 1892
    Page Range: 1--12
    Publication info: Leyden,E.J. Brill.
  39. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 25
    Date: 1905
    Page Range: 117--132
    Publication info: Leyden,E.J. Brill.
  40. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 13
    Date: 1870
    Page Range: 111--121
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  41. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 15
    Date: 1893
    Page Range: 128--128
    Publication info: Leyden,E.J. Brill.
  42. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 35
    Date: 1913
    Page Range: 177--180
    Publication info: Leyden,E.J. Brill.
  43. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 35
    Date: 1913
    Page Range: 207--208
    Publication info: Leyden,E.J. Brill.
  44. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 15
    Date: 1893
    Page Range: 131--140
    Publication info: Leyden,E.J. Brill.
  45. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 3
    Date: 1881
    Page Range: 145--150
    Publication info: Leyden,E.J. Brill.
  46. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 7
    Date: 1885
    Page Range: 39--46
    Publication info: Leyden,E.J. Brill.
  47. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 6
    Date: 1884
    Page Range: 1--6
    Publication info: Leyden,E.J. Brill.
  48. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 13
    Date: 1891
    Page Range: 251--254
    Publication info: Leyden,E.J. Brill.
  49. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 25
    Date: 1905
    Page Range: 203--215
    Publication info: Leyden,E.J. Brill.
  50. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 31
    Date: 1909
    Page Range: 254--256
    Publication info: Leyden,E.J. Brill.
  51. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 31
    Date: 1888
    Page Range: 201--234
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  52. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 14
    Date: 1871
    Page Range: 48
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  53. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 12
    Date: 1869
    Page Range: 30--30
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  54. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 13
    Date: 1870
    Page Range: 32--33
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  55. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: The Annals and magazine of natural history; zoology, botany, and geology
    Volume: 10
    Series: 4
    Date: 1872
    Page Range: 446--448
    Publication info: London,Taylor and Francis, Ltd.
  56. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Tijdschrift voor entomologie.
    Volume: 22
    Date: 1879
    Page Range: 21--57
    Publication info: [Amsterdam] :Nederlandse Entomologische Vereniging.
  57. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 35
    Date: 1913
    Page Range: 156--158
    Publication info: Leyden,E.J. Brill.
  58. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 12
    Date: 1890
    Page Range: 12--12
    Publication info: Leyden,E.J. Brill.
  59. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 35
    Date: 1913
    Page Range: 148--153
    Publication info: Leyden,E.J. Brill.
  60. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 6
    Date: 1884
    Page Range: 81--83
    Publication info: Leyden,E.J. Brill.
  61. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 13
    Date: 1891
    Page Range: 147--150
    Publication info: Leyden,E.J. Brill.
  62. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 4
    Date: 1882
    Page Range: 173--174
    Publication info: Leyden,E.J. Brill.
  63. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 15
    Date: 1893
    Page Range: 111--112
    Publication info: Leyden,E.J. Brill.
  64. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 32
    Date: 1910
    Page Range: 219--222
    Publication info: Leyden,E.J. Brill.
  65. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 20
    Date: 1899
    Page Range: 199--200
    Publication info: Leyden,E.J. Brill.
  66. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 11
    Date: 1889
    Page Range: 237--238
    Publication info: Leyden,E.J. Brill.
  67. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 14
    Date: 1892
    Page Range: 38--38
    Publication info: Leyden,E.J. Brill.
  68. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 29
    Date: 1908
    Page Range: 261--262
    Publication info: Leyden,E.J. Brill.
  69. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 14
    Date: 1892
    Page Range: 31--32
    Publication info: Leyden,E.J. Brill.
  70. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 13
    Date: 1891
    Page Range: 249--250
    Publication info: Leyden,E.J. Brill.
  71. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 3
    Date: 1881
    Page Range: 31--38
    Publication info: Leyden,E.J. Brill.
  72. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 13
    Date: 1891
    Page Range: 151--153
    Publication info: Leyden,E.J. Brill.
  73. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 4
    Date: 1882
    Page Range: 188--189
    Publication info: Leyden,E.J. Brill.
  74. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 4
    Date: 1882
    Page Range: 175--176
    Publication info: Leyden,E.J. Brill.
  75. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 34
    Date: 1912
    Page Range: 123--127
    Publication info: Leyden,E.J. Brill.
  76. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 2
    Date: 1880
    Page Range: 249--250
    Publication info: Leyden,E.J. Brill.
  77. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 19
    Date: 1897
    Page Range: 125--126
    Publication info: Leyden,E.J. Brill.
  78. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 17
    Date: 1895
    Page Range: 49--50
    Publication info: Leyden,E.J. Brill.
  79. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 3
    Date: 1881
    Page Range: 7--9
    Publication info: Leyden,E.J. Brill.
  80. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 9
    Date: 1887
    Page Range: 127--128
    Publication info: Leyden,E.J. Brill.
  81. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 6
    Date: 1884
    Page Range: 181--182
    Publication info: Leyden,E.J. Brill.
  82. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 15
    Date: 1893
    Page Range: 13--16
    Publication info: Leyden,E.J. Brill.
  83. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 11
    Date: 1889
    Page Range: 49--50
    Publication info: Leyden,E.J. Brill.
  84. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 20
    Date: 1898
    Page Range: 33--34
    Publication info: Leyden,E.J. Brill.
  85. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 16
    Date: 1894
    Page Range: 107--109
    Publication info: Leyden,E.J. Brill.
  86. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 23
    Date: 1903
    Page Range: 229--230
    Publication info: Leyden,E.J. Brill.
  87. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 34
    Date: 1912
    Page Range: 95--96
    Publication info: Leyden,E.J. Brill.
  88. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 25
    Date: 1905
    Page Range: 169--170
    Publication info: Leyden,E.J. Brill.
  89. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 15
    Date: 1893
    Page Range: 171--173
    Publication info: Leyden,E.J. Brill.
  90. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 36
    Date: 1914
    Page Range: 191--192
    Publication info: Leyden,E.J. Brill.
  91. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 36
    Date: 1914
    Page Range: 170--172
    Publication info: Leyden,E.J. Brill.
  92. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 25
    Date: 1905
    Page Range: 163--165
    Publication info: Leyden,E.J. Brill.
  93. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 20
    Date: 1898
    Page Range: 29--32
    Publication info: Leyden,E.J. Brill.
  94. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 25
    Date: 1904
    Page Range: 103--109
    Publication info: Leyden,E.J. Brill.
  95. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 18
    Date: 1896
    Page Range: 25--32
    Publication info: Leyden,E.J. Brill.
  96. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 19
    Date: 1897
    Page Range: 117--124
    Publication info: Leyden,E.J. Brill.
  97. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 19
    Date: 1897
    Page Range: 131--132
    Publication info: Leyden,E.J. Brill.
  98. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 35
    Date: 1913
    Page Range: 159--160
    Publication info: Leyden,E.J. Brill.
  99. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
    In: Notes from the Leyden Museum.
    Volume: 17
    Date: 1896
    Page Range: 207--208
    Publication info: Leyden,E.J. Brill.
  100. By: Ritsema, C. (Cornelius Coenraad)
    Type: Article
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