- Cetacean bycatches in the northern Black Sea (CetByBlaS). 2011. Dataset assembled by A.Birkun, Jr. and S.Krivokhizhin. EMODNet., meer
- CetSiBS: Cetacean sightings in the Black Sea, Sea of Azov and Kerch Strait (CetSiBS). 2011. Dataset assembled by A.Birkun, Jr. and S.Krivokhizhin. EMODNet., meer
- CeStraBS: Cetacean strandings in the northern Black Sea and the Sea of Azov (CeStraBS). 2011. Dataset assembled by A. Birkun, Jr. and S. Krivokhizhin.EMODnet., meer
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