%0 Journal Article %A S. Drury %T On non-triangular sets in tensor algebras %J Studia Mathematica %D 1970 %P 253-263 %V 34 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-34-3-253-263/ %R 10.4064/sm-34-3-253-263 %G en %F 10_4064_sm_34_3_253_263