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@article{AL_1978_17_4_a5, author = {V. V. Rybakov}, title = {Modal logics with ${\rm LM}$-axioms}, journal = {Algebra i logika}, pages = {455--467}, publisher = {mathdoc}, volume = {17}, number = {4}, year = {1978}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1978_17_4_a5/} }
V. V. Rybakov. Modal logics with ${\rm LM}$-axioms. Algebra i logika, Tome 17 (1978) no. 4, pp. 455-467. http://geodesic.mathdoc.fr/item/AL_1978_17_4_a5/