On the groups $O_{18,1}(\mathbf{Z})$ and $O_{19,1}(\mathbf{Z})$
Doklady Akademii Nauk, Tome 238 (1978) no. 6, pp. 1273-1275
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@article{DAN_1978_238_6_a0,
author = {\`E. Vinberg and I. M. Kaplinskaya},
title = {On the groups $O_{18,1}(\mathbf{Z})$ and $O_{19,1}(\mathbf{Z})$},
journal = {Doklady Akademii Nauk},
pages = {1273--1275},
publisher = {mathdoc},
volume = {238},
number = {6},
year = {1978},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DAN_1978_238_6_a0/}
}
È. Vinberg; I. M. Kaplinskaya. On the groups $O_{18,1}(\mathbf{Z})$ and $O_{19,1}(\mathbf{Z})$. Doklady Akademii Nauk, Tome 238 (1978) no. 6, pp. 1273-1275. http://geodesic.mathdoc.fr/item/DAN_1978_238_6_a0/