%0 Journal Article %A S. A. Kruglyak %A I. V. Livinsky %T Orthoscalar representations of the partially ordered set $(N, 4)$ %J Algebra and discrete mathematics %D 2012 %P 217-229 %V 14 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/ADM_2012_14_2_a5/ %G en %F ADM_2012_14_2_a5