%0 Journal Article %A A. S. Blagoveshchenskii %A A. A. Buzdin %T Wave propagation in the string with rapidly varying parameters %J Zapiski Nauchnykh Seminarov POMI %D 1972 %P 15-51 %V 25 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1972_25_a2/ %G ru %F ZNSL_1972_25_a2