1. |
N. S. Sinyukov, E. N. Sinyukova, Yu. A. Movchan, “Some aspects of current interest in the development of the theory of geodesic mappings of Riemannian spaces and its generalizations”, Izv. Vyssh. Uchebn. Zaved. Mat., 1994, no. 3, 76–80 ; Russian Math. (Iz. VUZ), 38:3 (1994), 74–78 |
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