@article{1183735043, author = {Bull, R. A.}, title = {An Algebraic Study of Diodorean Modal Systems}, journal = {J. Symbolic Logic}, volume = {30}, number = {1}, year = {1965}, pages = { 58-64}, language = {en}, url = {http://dml.mathdoc.fr/item/1183735043} }
Bull, R. A. An Algebraic Study of Diodorean Modal Systems. J. Symbolic Logic, Tome 30 (1965) no. 1, pp. 58-64. http://gdmltest.u-ga.fr/item/1183735043/