Cross ratio of a nondegenerate quadruple of subspaces
Funkcionalʹnyj analiz i ego priloženiâ, Tome 15 (1981) no. 1, pp. 76-77
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@article{FAA_1981_15_1_a10,
author = {\'E. F. Kaplenko and V. A. Ponomarev},
title = {Cross ratio of a nondegenerate quadruple of subspaces},
journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
pages = {76--77},
publisher = {mathdoc},
volume = {15},
number = {1},
year = {1981},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/FAA_1981_15_1_a10/}
}
É. F. Kaplenko; V. A. Ponomarev. Cross ratio of a nondegenerate quadruple of subspaces. Funkcionalʹnyj analiz i ego priloženiâ, Tome 15 (1981) no. 1, pp. 76-77. http://geodesic.mathdoc.fr/item/FAA_1981_15_1_a10/