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@article{IVM_1975_2_a13, author = {V. R. Kaigorodov}, title = {The {Riemannian} spaces $\overset\ast D_n^s$. {Second} order recurrence}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {112--115}, publisher = {mathdoc}, number = {2}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1975_2_a13/} }
V. R. Kaigorodov. The Riemannian spaces $\overset\ast D_n^s$. Second order recurrence. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 2 (1975), pp. 112-115. http://geodesic.mathdoc.fr/item/IVM_1975_2_a13/