Recognizing patterns: Studies in living and automatic systems: Paul A. Kolers and Murray Eden (editors) M.I.T. Press, Cambridge, Mass. (1968).

Thomas W. Calvert Recognizing patterns: Studies in living and automatic systems: Paul A. Kolers and Murray Eden (editors) M.I.T. Press, Cambridge, Mass. (1968). 239-240 1969 5 Autom. 2 https://doi.org/10.1016/0005-1098(69)90018-1 db/journals/automatica/automatica5.html#Calvert69