@article{1183741780, author = {Nagle, Michael C. and Thomason, S. K.}, title = {The Extensions of the Modal Logic $K5$}, journal = {J. Symbolic Logic}, volume = {50}, number = {1}, year = {1985}, pages = { 102-109}, language = {en}, url = {http://dml.mathdoc.fr/item/1183741780} }
Nagle, Michael C.; Thomason, S. K. The Extensions of the Modal Logic $K5$. J. Symbolic Logic, Tome 50 (1985) no. 1, pp. 102-109. http://gdmltest.u-ga.fr/item/1183741780/