Arbib, Michael A. and
Manes, Ernest G. 1983.
“A Category-Theoretic Approach to Systems in a Fuzzy World.” in
Language, Logic and Method, edited by Robert S.
Cohen and Marx W.
Wartofsky, 2nd ed., pp. 199–224.
Boston Studies in the Philosophy of Science n. 31. Dordrecht: D. Reidel Publishing Co.