@article{DM_2011_23_4_a3,
     author = {V. V. Rimatskii},
     title = {On construction of an explicit basis for admissible inference rules of modal logics extending~$S4.1$},
     journal = {Diskretnaya Matematika},
     pages = {48--65},
     publisher = {mathdoc},
     volume = {23},
     number = {4},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2011_23_4_a3/}
}