%0 Journal Article %A A. E. Guterman %A O. V. Markova %T The realizability problem for values of the length function for quasi-commuting matrix pairs %J Zapiski Nauchnykh Seminarov POMI %D 2015 %P 59-73 %V 439 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2015_439_a5/ %G ru %F ZNSL_2015_439_a5