@article{KUTGS_1971_6_a1,
     author = {V. N. Abdullin},
     title = {Classification of $S$-spaces of basic type},
     journal = {Trudy Geometricheskogo Seminara},
     pages = {5--21},
     publisher = {mathdoc},
     volume = {6},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUTGS_1971_6_a1/}
}