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Derzhavin, A. N. (1945). Niphargus of the Caspian Sea - Niphargus caspius sp. nova. Proceedings of the Academy of Sciences of the Azerbaijan SSR. 1 (2): 83-86.
Derzhavin, A. N. (1945). Niphargus of the Caspian Sea - Niphargus caspius sp. nova. Proceedings of the Academy of Sciences of the Azerbaijan SSR. 1 (2): 83-86.