@article{ZNSL_1990_186_a9, author = {Yu. E. Karpeshina}, title = {Interaction of a free wave with a semicrystall}, journal = {Zapiski Nauchnykh Seminarov POMI}, pages = {107--114}, publisher = {mathdoc}, volume = {186}, year = {1990}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/ZNSL_1990_186_a9/} }