@article{INTM_1966_2_a2,
     author = {V. V. Nemytskii and M. M. Vainberg and R. S. Gusarova},
     title = {Operator differential equations},
     journal = {Itogi nauki i tehniki. Seri\^a, Matemati\v{c}eskij analiz},
     pages = {165--235},
     year = {1966},
     volume = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTM_1966_2_a2/}
}