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@article{IVM_1963_2_a0, author = {D. Z. Avazashvili}, title = {On a boundary-value problem in optics}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {3--11}, publisher = {mathdoc}, number = {2}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1963_2_a0/} }
D. Z. Avazashvili. On a boundary-value problem in optics. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 2 (1963), pp. 3-11. http://geodesic.mathdoc.fr/item/IVM_1963_2_a0/