title: Second-Phase Eutrophication of the Black Sea Shelf
abstract: . (, ) : ( -), ( -). . - 1970- - 1980- ., 1980- 1990- . 1990- . , . 1970- 1980- . . 1980- 1990- ., , ,
journal: Ekologicheskaya bezopasnost pribrezhnoy i shel fovoy zon morya