@article{DAN_1985_285_1_a10, author = {V. M. Filippov}, title = {Quasiclassical solutions of an inverse problem of the calculus of}, journal = {Doklady Akademii Nauk}, pages = {53--56}, publisher = {mathdoc}, volume = {285}, number = {1}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1985_285_1_a10/} }