@article{1183735612, author = {Cresswell, M. J.}, title = {Functions of Propositions}, journal = {J. Symbolic Logic}, volume = {31}, number = {1}, year = {1966}, pages = { 545-560}, language = {en}, url = {http://dml.mathdoc.fr/item/1183735612} }
Cresswell, M. J. Functions of Propositions. J. Symbolic Logic, Tome 31 (1966) no. 1, pp. 545-560. http://gdmltest.u-ga.fr/item/1183735612/