@article{1093888503, author = {Chapman, Tobias}, title = {A modal logic with temporal variables.}, journal = {Notre Dame J. Formal Logic}, volume = {19}, number = {1}, year = {1978}, pages = { 558-578}, language = {en}, url = {http://dml.mathdoc.fr/item/1093888503} }
Chapman, Tobias. A modal logic with temporal variables.. Notre Dame J. Formal Logic, Tome 19 (1978) no. 1, pp. 558-578. http://gdmltest.u-ga.fr/item/1093888503/