@article{INTG_1969_2_a14,
     author = {M. M. Tsalenko},
     title = {The integrability of a~tensor structure on a~manifold of class~$C^\omega$},
     journal = {Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara},
     pages = {333--355},
     publisher = {mathdoc},
     volume = {2},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTG_1969_2_a14/}
}