@article{MZM_1998_63_3_a1,
     author = {V. F. Babenko and V. A. Kofanov and S. A. Pichugov},
     title = {Additive inequalities for intermediate derivatives of differentiable mappings of {Banach} spaces},
     journal = {Matemati\v{c}eskie zametki},
     pages = {332--342},
     publisher = {mathdoc},
     volume = {63},
     number = {3},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1998_63_3_a1/}
}