@article{VNGU_2005_5_1_a4,
     author = {V. F. Murzina},
     title = {Modal logics of $\alpha$-spaces},
     journal = {Sibirskij \v{z}urnal \v{c}istoj i prikladnoj matematiki},
     pages = {40--63},
     year = {2005},
     volume = {5},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VNGU_2005_5_1_a4/}
}