@article{MZM_1989_45_1_a6,
     author = {S. G. Lobanov},
     title = {Chain rule and its inverse for maps of locally convex spaces},
     journal = {Matemati\v{c}eskie zametki},
     pages = {43--56},
     publisher = {mathdoc},
     volume = {45},
     number = {1},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1989_45_1_a6/}
}