%0 Journal Article %A A. Ya. Helemskii %T Quantum versions of vector quality and exponential law in the frame-work of the non-matricial approach %J Sbornik. Mathematics %D 2006 %P 1841-1863 %V 197 %N 12 %U http://geodesic.mathdoc.fr/item/SM_2006_197_12_a6/ %G en %F SM_2006_197_12_a6