@article{1183735729, author = {Cresswell, M. J.}, title = {Note on a System of Aqvist}, journal = {J. Symbolic Logic}, volume = {32}, number = {1}, year = {1967}, pages = { 58-60}, language = {en}, url = {http://dml.mathdoc.fr/item/1183735729} }
Cresswell, M. J. Note on a System of Aqvist. J. Symbolic Logic, Tome 32 (1967) no. 1, pp. 58-60. http://gdmltest.u-ga.fr/item/1183735729/