@article{SEMR_2006_3_a21,
     author = {M. V. Stukacheva},
     title = {On canonical formulas for the extensions of minimal logic},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {312--334},
     publisher = {mathdoc},
     volume = {3},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2006_3_a21/}
}