%0 Journal Article %A D. R. Yafaev %T Passage through a~potential barrier and multiple wells %J Algebra i analiz %D 2017 %P 242-273 %V 29 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2017_29_2_a8/ %G en %F AA_2017_29_2_a8