@article {9065,
	title = {{\"U}ber Oligolophinae, Caddoinae, Sclerosomatinae, Leiobuninae, Neopilioninae und Leptobuninae (Phalangiidae, Opiliones Palpatores). (Weitere Weberknechte XX)},
	journal = {Senckenbergiana biologica},
	volume = {38},
	year = {1957},
	pages = { 323{\textendash}358},
	author = {Roewer, Carl F}
}
@article {8933,
	title = {The genus Tetragnatha (Araneae, Argiopidae) in Panama},
	journal = {Bulletin of the Museum of Comparative Zoology},
	volume = {116},
	year = {1957},
	pages = {p.301-354},
	author = {Chickering, Arthur M}
}
@article {8898,
	title = {The spider genera Enoplognatha, Theridion, and Paidisca in America north of Mexico (Araneae, Theridiidae).},
	journal = {Bulletin of the American Museum of Natural History},
	volume = {112},
	year = {1957},
	pages = {1-124},
	author = {Levi, Herbert W}
}
@article {8892,
	title = {The spider genera Crustulina and Steatoda in North America, Central America, and the West Indies (Araneae, Theridiidae)},
	journal = {Bulletin of the Museum of Comparative Zoology},
	volume = {117},
	year = {1957},
	pages = {367-424},
	author = {Levi, Herbert W}
}
@article {8884,
	title = {The North American spider genera Paratheridula, Tekellina, Pholcomma and Archerius (Araneae: Theridiidae).},
	journal = {Transactions of the American Microscopical Society},
	volume = {76},
	year = {1957},
	month = {105-115},
	author = {Levi, Herbert W}
}
@article {8860,
	title = {The spider genera Chrysso and Tidarren in America},
	journal = { Journal of The New York Entomological Society},
	volume = {63},
	year = {1957},
	pages = {59-81},
	author = {Levi, Herbert W}
}
@article {8606,
	title = {Bisher unbekannt gebliebene Araneen-M{\"a}nnchen und -Weibchen des Wiener Naturhistorischen Museums (1. Teil).},
	journal = {Annalen des Naturhistorischen Museums in Wien},
	volume = {61},
	year = {1957},
	pages = {254-272},
	author = {Erich Kritscher}
}
@article {8459,
	title = {A new zodariid spider from Panama},
	journal = {Breviora},
	volume = {69},
	year = {1957},
	pages = {1-7},
	author = {Chickering, Arthur M}
}
