Kovalev, A. Et Al. Long-term changes in the biomass and composition of fodder zooplankton in coastal regions of the Black Sea during the period 1957-1996. 1998. In Ecosystem Modeling as a Management Tool for the Black Sea , Kluwer Academic Publishers, Dordrecht, 209-219.

Kovalev, A., Gubanova, A., KIDEYŞ, A. E., Melnikov, V., Niermann, U., Ovstrovskaya, N., ... Prusova, I. Y.(1998). Long-term changes in the biomass and composition of fodder zooplankton in coastal regions of the Black Sea during the period 1957-1996. Ecosystem Modeling as a Management Tool for the Black Sea (pp.209-219), Dordrecht: Kluwer Academic Publishers.

Kovalev, AV Et Al. "Long-term changes in the biomass and composition of fodder zooplankton in coastal regions of the Black Sea during the period 1957-1996." In Ecosystem Modeling as a Management Tool for the Black Sea , 209-219. Dordrecht: Kluwer Academic Publishers, 1998

Kovalev, AV Et Al. "Long-term changes in the biomass and composition of fodder zooplankton in coastal regions of the Black Sea during the period 1957-1996." Ecosystem Modeling as a Management Tool for the Black Sea , Kluwer Academic Publishers, 1998, pp.209-219.

Kovalev, A. Et Al. (1998) "Long-term changes in the biomass and composition of fodder zooplankton in coastal regions of the Black Sea during the period 1957-1996", Ecosystem Modeling as a Management Tool for the Black Sea . Dordrecht: Kluwer Academic Publishers.

@bookchapter{bookchapter, author ={AV Kovalev Et Al. }, chaptertitle={Long-term changes in the biomass and composition of fodder zooplankton in coastal regions of the Black Sea during the period 1957-1996}, booktitle={ Ecosystem Modeling as a Management Tool for the Black Sea}, publisher={Kluwer Academic Publishers}, city={Dordrecht},year={1998} }