Similar title to
Fedra, K.
(1980).
Mathematical Modelling - A Management Tool for Aquatic Ecosystems?
IIASA Research Report (Reprint).
IIASA, Laxenburg, Austria: RR-81-002. Reprinted from Helgoland Marine Research (Helgolaender Meeresuntersuchungen), 34:221-235 [1980].