@article{VNGU_2013_13_1_a6,
     author = {N. T. Kogabaev},
     title = {The complexity of isomorphism problem for computable projective planes},
     journal = {Sibirskij \v{z}urnal \v{c}istoj i prikladnoj matematiki},
     pages = {68--75},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VNGU_2013_13_1_a6/}
}