@article{AA_2017_29_2_a8,
     author = {D. R. Yafaev},
     title = {Passage through a~potential barrier and multiple wells},
     journal = {Algebra i analiz},
     pages = {242--273},
     publisher = {mathdoc},
     volume = {29},
     number = {2},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AA_2017_29_2_a8/}
}