@article{UZMU_1951_148_148_a0,
     author = {V. F. Kagan},
     title = {The development of interpretations of {non-Euclidean} geometry},
     journal = {Uchenye Zapiski Moskovskogo Gosudarstvennogo Universiteta},
     pages = {3--8},
     publisher = {mathdoc},
     volume = {148},
     number = {148},
     year = {1951},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZMU_1951_148_148_a0/}
}