@article{DM_2013_25_3_a4,
     author = {G. V. Bokov},
     title = {Criterion for propositional calculi to be finitely generated},
     journal = {Diskretnaya Matematika},
     pages = {38--63},
     publisher = {mathdoc},
     volume = {25},
     number = {3},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2013_25_3_a4/}
}