@article{MZM_1968_3_1_a12,
     author = {Yu. A. Aminov},
     title = {Divergence properties of the curvatures of a~vector field and of a~family of surfaces},
     journal = {Matemati\v{c}eskie zametki},
     pages = {103--111},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1968_3_1_a12/}
}