@article{SEMR_2013_10_a5,
     author = {V. V. Rimatskii and V. R. Kiyatkin},
     title = {Independent bases for admissible rules of pretabular modal logic and its extensions},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {79--89},
     publisher = {mathdoc},
     volume = {10},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2013_10_a5/}
}