@misc{KUTGS_1990_20_a0,
     title = {Information on sessions of {Geometrical} {Seminar} of {Kazan} {University} (1984, {September} {\textendash} 1988, {June)}},
     journal = {Trudy Geometricheskogo Seminara},
     pages = {3--12},
     year = {1990},
     volume = {20},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUTGS_1990_20_a0/}
}