Defining the space type on Petrov's classification
Doklady Akademii Nauk, Tome 176 (1967) no. 1, pp. 56-57
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@article{DAN_1967_176_1_a13,
author = {R. I. Khrapko},
title = {Defining the space type on {Petrov's} classification},
journal = {Doklady Akademii Nauk},
pages = {56--57},
year = {1967},
volume = {176},
number = {1},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DAN_1967_176_1_a13/}
}
R. I. Khrapko. Defining the space type on Petrov's classification. Doklady Akademii Nauk, Tome 176 (1967) no. 1, pp. 56-57. http://geodesic.mathdoc.fr/item/DAN_1967_176_1_a13/