@article{1183742440, author = {Kapron, Bruce M.}, title = {Modal Sequents and Definability}, journal = {J. Symbolic Logic}, volume = {52}, number = {1}, year = {1987}, pages = { 756-762}, language = {en}, url = {http://dml.mathdoc.fr/item/1183742440} }
Kapron, Bruce M. Modal Sequents and Definability. J. Symbolic Logic, Tome 52 (1987) no. 1, pp. 756-762. http://gdmltest.u-ga.fr/item/1183742440/