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@article{IVM_1969_7_a14, author = {G. S. Yudaev}, title = {On the theory of infinite systems with retardations}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {101--107}, publisher = {mathdoc}, number = {7}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1969_7_a14/} }
G. S. Yudaev. On the theory of infinite systems with retardations. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 7 (1969), pp. 101-107. http://geodesic.mathdoc.fr/item/IVM_1969_7_a14/