@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/