@article{TIMM_2019_25_1_a19,
     author = {V. I. Sumin},
     title = {Controlled {Volterra} functional equations and the contraction mapping principle},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {262--278},
     year = {2019},
     volume = {25},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2019_25_1_a19/}
}