@article{bwmeta1.element.bwnjournal-article-smv34i1p21bwm,
author = {S. Drury},
title = {On non-triangular sets in tensor algebras},
journal = {Studia Mathematica},
volume = {34},
year = {1970},
pages = {253-263},
zbl = {0194.44504},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv34i1p21bwm}
}
Drury, S. On non-triangular sets in tensor algebras. Studia Mathematica, Tome 34 (1970) pp. 253-263. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv34i1p21bwm/