@article{INTG_1980_11_a0,
     author = {N. M. Ostianu and N. D. Polyakov},
     title = {Submanifolds in differentiable manifolds provided with differential geometric {structures.~I}},
     journal = {Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara},
     pages = {3--63},
     publisher = {mathdoc},
     volume = {11},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTG_1980_11_a0/}
}