%0 Journal Article %A V. V. Gorbatsevich %T On geometry of solutions to approximate equations and their symmetries %J Ufa mathematical journal %D 2017 %P 40-54 %V 9 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/UFA_2017_9_2_a3/ %G en %F UFA_2017_9_2_a3