@article{RM_1986_41_3_a0,
     author = {A. D. Aleksandrov and V. N. Berestovskii and I. G. Nikolaev},
     title = {Generalized {Riemannian} spaces},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {1--54},
     publisher = {mathdoc},
     volume = {41},
     number = {3},
     year = {1986},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1986_41_3_a0/}
}