Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1984_36_5_a12, author = {Ya. M. Drugush}, title = {Finite approximability of forest superintuitionistic logics}, journal = {Matemati\v{c}eskie zametki}, pages = {755--764}, publisher = {mathdoc}, volume = {36}, number = {5}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1984_36_5_a12/} }
Ya. M. Drugush. Finite approximability of forest superintuitionistic logics. Matematičeskie zametki, Tome 36 (1984) no. 5, pp. 755-764. http://geodesic.mathdoc.fr/item/MZM_1984_36_5_a12/