@book{bhlpg14115154, title = {Archiv für Naturgeschichte }, volume = {Jahrg.69:Bd.2:Heft.2:pt.2-3 (1903)}, url = {https://www.biodiversitylibrary.org/page/14115154}, publisher = {Nicolai}, author = {}, year = {1903}, pages = {Page 71}, } @book{bhlpg12041144, title = {Etudes sur les infusoires d'eau douce }, url = {https://www.biodiversitylibrary.org/page/12041144}, publisher = {Georg}, author = {Penard, Eugène, 1855 -1954}, year = {1922}, pages = {Page 38}, } @book{bhlpg12041143, title = {Etudes sur les infusoires d'eau douce }, url = {https://www.biodiversitylibrary.org/page/12041143}, publisher = {Georg}, author = {Penard, Eugène, 1855 -1954}, year = {1922}, pages = {Page 37}, } @book{bhlpg12041145, title = {Etudes sur les infusoires d'eau douce }, url = {https://www.biodiversitylibrary.org/page/12041145}, publisher = {Georg}, author = {Penard, Eugène, 1855 -1954}, year = {1922}, pages = {Page 39}, } @book{bhlpg52065452, title = {Etudes sur les infusoires d'eau douce }, url = {https://www.biodiversitylibrary.org/page/52065452}, publisher = {Georg}, author = {Penard, Eugène, 1855 -1954}, year = {1922}, pages = {Page 37}, } @book{bhlpg52065454, title = {Etudes sur les infusoires d'eau douce }, url = {https://www.biodiversitylibrary.org/page/52065454}, publisher = {Georg}, author = {Penard, Eugène, 1855 -1954}, year = {1922}, pages = {Page 39}, } @book{bhlpg52065453, title = {Etudes sur les infusoires d'eau douce }, url = {https://www.biodiversitylibrary.org/page/52065453}, publisher = {Georg}, author = {Penard, Eugène, 1855 -1954}, year = {1922}, pages = {Page 38}, } @book{bhlpg6255754, title = {Etudes sur les infusoires d'eau douce }, url = {https://www.biodiversitylibrary.org/page/6255754}, publisher = {Georg}, author = {Penard, Eugène, 1855 -1954}, year = {1922}, pages = {Page 38}, } @book{bhlpg6255753, title = {Etudes sur les infusoires d'eau douce }, url = {https://www.biodiversitylibrary.org/page/6255753}, publisher = {Georg}, author = {Penard, Eugène, 1855 -1954}, year = {1922}, pages = {Page 37}, } @book{bhlpg53124908, title = {The Zoological record }, volume = {v.35 (1898)}, url = {https://www.biodiversitylibrary.org/page/53124908}, publisher = {J.V. Voorst}, author = {Zoological Society of London. }, year = {1898}, pages = {Page 22}, }