@article{FAA_2007_41_1_a1,
     author = {Ya. Sh. Il'yasov},
     title = {Bifurcation {Calculus} by the {Extended} {Functional} {Method}},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {23--38},
     publisher = {mathdoc},
     volume = {41},
     number = {1},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_2007_41_1_a1/}
}