%0 Journal Article %A A. A. Osinovskaya %T The restrictions of representations of the special linear group to subsystem subgroups of type~$A_2$ %J Zapiski Nauchnykh Seminarov POMI %D 2017 %P 130-153 %V 455 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2017_455_a11/ %G ru %F ZNSL_2017_455_a11