@article{RM_1972_27_6_a14,
     author = {V. A. Efremovich and \`E. A. Loginov},
     title = {Continuation of equimorphisms in {Riemannian} geometry},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     publisher = {mathdoc},
     volume = {27},
     number = {6},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1972_27_6_a14/}
}