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  1. By: Brignoli, Paolo Marcello, - Carico, James E. - Coyle, Frederick A. - Cutler, Bruce, - Dondale, Charles D. - Forster, Raymond R., - Francke, Oscar F. - Galiano, María Elena - Gertsch, Willis John, - Kaston, B. J. (Benjamin Julian), - Kronestedt, Torbjorn. - Levi, Herbert Walter, - Lowrie, Donald Charles, - Maury, Emilio A. - Millidge, A. F. (Alfred Frank) - Minch, Edwin W. - Murphy, John A. - Opell, Brent D. - Peck, William B. - Platnick, Norman I. - Raven, Robert J. - Redner, James H. - Reiskind, Jonathan. - Richman, David B. (David Bruce), - Roth, Vincent D. - Shadab, Mohammad Umar - Shear, William A. - Stahnke, Herbert L. (Herbert Ludwig), - Valerio, Carlos E. - Valerio, Carlos E. - Helsdingen, P. J. van
    Publication info: 1981
    Holding Institution: American Museum of Natural History Library
  1. By: Helsdingen, P. J. van
    Type: Article
    In: Arachnologische Mitteilungen
    Volume: 33
    Date: 2007
    Page Range: 36--37
    Publication Info: Basel, Arachnologische Gesellschaft,
  2. By: Helsdingen, P. J. van - Nieukerken, Erik J. van
    Type: Article
    In: Tijdschrift voor entomologie
    Volume: 132
    Date: 1989
    Page Range: 161--162
    Publication Info: [Amsterdam], Nederlandse Entomologische Vereniging,
  3. By: Helsdingen, P. J. van
    Type: Article
    In: Psyche
    Volume: 80
    Date: 1973
    Page Range: 48--61
    Publication Info: Cambridge, Mass, Cambridge Entomological Club,
  4. By: Helsdingen, P. J. van - Decae, Arthur E.
    Type: Article
    In: Tijdschrift voor entomologie
    Volume: 135
    Date: 1992
    Page Range: 169--178
    Publication Info: [Amsterdam], Nederlandse Entomologische Vereniging,
  5. By: Helsdingen, P. J. van
    Type: Article
    In: ZooKeys
    Volume: 16
    Date: 2009
    Page Range: 301-308
    Publication Info: Pensoft Publishers 2009
  6. By: Helsdingen, P. J. van
    Type: Article
    In: Arachnologische Mitteilungen
    Volume: 36
    Date: 2008
    Page Range: 35--36
    Publication Info: Basel, Arachnologische Gesellschaft,
  7. By: Helsdingen, P. J. van
    Type: Article
    In: Arachnologische Mitteilungen
    Volume: 40
    Date: 2011
    Page Range: 55--64
    Publication Info: Basel, Arachnologische Gesellschaft,
  8. By: Helsdingen, P. J. van
    Type: Article
    In: Arachnologische Mitteilungen
    Volume: 43
    Date: 2012
    Page Range: 58--62
    Publication Info: Basel, Arachnologische Gesellschaft,
  9. By: Helsdingen, P. J. van - Thaler, Konrad, - Deltshev, Christo
    Type: Article
    In: Tijdschrift voor entomologie
    Volume: 120
    Date: 1977
    Page Range: 1--54
    Publication Info: [Amsterdam], Nederlandse Entomologische Vereniging,
  10. By: Miller, Jeremy A. - Beentjes, Kevin - Helsdingen, P. J. van - IJland, Steven
    Type: Article
    In: ZooKeys
    Volume: 365
    Date: 2013
    Page Range: 245-261
    Publication Info: Pensoft Publishers 2013