@article{FAA_1988_22_1_a6,
     author = {A. V. Babin},
     title = {Connection between analytic properties of operator functions and smoothness of solutions of degenerate differential equations},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {60--61},
     publisher = {mathdoc},
     volume = {22},
     number = {1},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1988_22_1_a6/}
}