@article{MZM_2018_103_6_a7,
     author = {M. V. Svyatlovskiy},
     title = {Axiomatization and {Polynomial} {Solvability} of {Strictly} {Positive} {Fragments} of {Certain} {Modal} {Logics}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {884--901},
     publisher = {mathdoc},
     volume = {103},
     number = {6},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2018_103_6_a7/}
}