@article {21821,
	title = {Insects in amber from South America},
	journal = {American Journal of Science},
	volume = {5},
	number = {5},
	year = {1923},
	pages = {331-333},
	author = {Cockerell, Theodore Dru Alison}
}
@article {21864,
	title = {A comparison of the labium in certain holometabolous insects from the standpoint of phylogeny},
	journal = {Proceedings of the Entomological Society of Washington},
	volume = {25},
	year = {1923},
	pages = {171-180},
	author = {Crampton, G. C.}
}
@article {21865,
	title = {A phylogenetic study of the maxillae throughout the orders of insects},
	journal = {Journal of the New York Entomological Society},
	volume = {31},
	year = {1923},
	pages = {77-107, pl. XII-XVII},
	author = {Crampton, G. C.}
}
@article {21939,
	title = {Przeglad gatunk{\'o}w europejskich rodzaju Anatella Winnertz orazopis dwu nowych rodzaj{\'o}w: Heteropygium i Allophallus [Revue des especies europeennes du genre Anatella Winnertz avec la description des genres nouveaux; Heteropygium et Allophallus]},
	journal = {Archiwum Nauk Biologichnych Towarzystwa Naukowego Warszawskiego},
	volume = {1},
	number = {15},
	year = {1923},
	pages = {1-8, Tabl. I-II},
	url = {http://www.online-keys.net/sciaroidea/1921_30/Dziedzickiego_1922_Anatella_n_sp.pdf},
	author = {Dziedzicki, Henrik}
}
@inbook {22479,
	title = {Diptera (except Tipulidae, Rhyphidae and Calliphoridae)},
	booktitle = {North American Fauna},
	series = {Insects, Arachnids, and Chilopods of the Pribilof Islands, Alaska},
	volume = {46},
	year = {1923},
	pages = {170-227, 2 pl.},
	publisher = {U.S. Bureau of Biological Survey},
	organization = {U.S. Bureau of Biological Survey},
	address = {Washington, D.C.},
	author = {Malloch, J. R.}
}
@article {22627,
	title = {Nouvelle contribution a la monographie des "Mycetophilidae" (Ceroplatinae, Mycetophilinae et Sciophilinae) de l{\textquoteright}ambre de la Baltique <concl.>},
	journal = {Revue scientifique du Bourbonnais et du centre de la France},
	number = {1},
	year = {1923},
	pages = {14-34},
	url = {http://www.online-keys.net/sciaroidea/add01/meunier19230001.pdf},
	author = {Meunier, F.}
}
@article {22668,
	title = {On the homology between the genitalia of some species of Diptera and those of Merope tuber},
	journal = {Transactions of the Entomological Society of London},
	year = {1923},
	pages = {176-180, pl. vi, v},
	author = {Muir, F.}
}
@book {22896,
	title = {Dipteren aus Nowaja Semlja},
	series = {Report of the Scientific Results of the Norwegian Expedition to Novaya Zemlya, 1921},
	volume = {15},
	year = {1923},
	pages = {10},
	publisher = {Videnskabs-Selskabet i khristiania},
	organization = {Videnskabs-Selskabet i khristiania},
	address = {Kristiania},
	url = {http://www.online-keys.net/sciaroidea/1921_30/Sack_1923_Dipteren_Nowaja_semlja.pdf},
	author = {Sack, P.},
	editor = {Holtedahl, Olaf}
}
@article {22926,
	title = {On the larva, pupa, and systematic position of Orphnephila testacea Macq. (Diptera, Nematocera)},
	journal = {Annals and Magazine of Natural History},
	volume = {Ser. 9, vol. 11},
	year = {1923},
	pages = {631-640, pl. 7,8},
	author = {Saunders, L. G.}
}
@article {23056,
	title = {Aethiopische Dipteren},
	journal = {Wiener Entomologische Zeitung},
	volume = {40},
	year = {1923},
	pages = {81-99},
	author = {Speiser, P.}
}
@article {23057,
	title = {Mycetophilid flies as pests of the cucumber plant in glass-houses},
	journal = {Bulletin of Entomological Research},
	volume = {13},
	year = {1923},
	author = {Speyer, E. R.}
}
@article {21760,
	title = {Notes on Pennsylvania Diptera},
	journal = {Entomological News},
	volume = {34},
	year = {1923},
	pages = {211-215},
	author = {Champlain, A. B. and Knull, J. N.}
}
@article {21961,
	title = {On the Nematocerous Diptera of Jan Mayen Island},
	journal = {Annals and Magazine of Natural History},
	volume = {ser. 9, vol. 11},
	year = {1923},
	pages = {235-240},
	author = {Edwards, Frederick Wallace}
}
@article {22354,
	title = {Die Pilzm{\"u}cken M{\"a}hrens. 1. Nachtrag},
	journal = {Wiener Entomologische Zeitung},
	volume = {40},
	year = {1923},
	pages = {163-171},
	author = {Landrock, Karl}
}
