TY - JOUR A1 - Foerster, Heinz von T1 - From Stimulus to Symbol: The Economy of Biological Computation BCL Publication, 135, JF - Kepes, G. (Ed.): Sign, Image, Symbol, New York 1966, pp. 47-62. Y1 - 1966 N1 - Scan of Fromm's xeroxcopy ER -