@article{FAA_1972_6_4_a19,
     author = {A. S. Pyartli},
     title = {Birth of complex invariant manifolds close to a singular point of a parametrically dependent vector field},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {95--96},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1972_6_4_a19/}
}