@article{1250523557,
author = {Miyanishi, Masayoshi},
title = {The theorem of the cube for principal homogeneous spaces},
journal = {J. Math. Kyoto Univ.},
volume = {12},
number = {2},
year = {1972},
pages = { 1-15},
language = {en},
url = {http://dml.mathdoc.fr/item/1250523557}
}
Miyanishi, Masayoshi. The theorem of the cube for principal homogeneous spaces. J. Math. Kyoto Univ., Tome 12 (1972) no. 2, pp. 1-15. http://gdmltest.u-ga.fr/item/1250523557/