Similar title to
Fedra, K., Straten, G. van, & Beck, M.B.
(1981).
Uncertainty and Arbitrariness in Ecosystems Modelling: A Lake Modelling Example.
IIASA Research Report (Reprint).
IIASA, Laxenburg, Austria: RR-81-026. Reprinted from Ecological Modelling, 13 [1981].