%0 Journal Article %A V. A. Zolotarev %T Properties of characteristic function of commutative system of unbounded nonselfadjoint operators %J Žurnal matematičeskoj fiziki, analiza, geometrii %D 2010 %P 192-228 %V 6 %N 2 %U http://geodesic.mathdoc.fr/item/JMAG_2010_6_2_a2/ %G en %F JMAG_2010_6_2_a2