@article{MZM_1989_45_2_a5,
     author = {V. G. Krotov},
     title = {Differential properties on the boundary of functions that are holomorphic in the unit ball in~$C^N$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {51--59},
     publisher = {mathdoc},
     volume = {45},
     number = {2},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1989_45_2_a5/}
}