%0 Journal Article %A T. S. Nikolova %A D. D. Bainov %T Theorems on the existence and uniqueness of the solution of certain systems of integro-differential equations of superneutral type %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1978 %P 75-80 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1978_1_a8/ %G ru %F IVM_1978_1_a8