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@article{IVM_1984_4_a18, author = {L. A. Matevosyan}, title = {Path surfaces of composition of {Riemannian} spaces}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {78--80}, publisher = {mathdoc}, number = {4}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1984_4_a18/} }
L. A. Matevosyan. Path surfaces of composition of Riemannian spaces. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 4 (1984), pp. 78-80. http://geodesic.mathdoc.fr/item/IVM_1984_4_a18/