Application of the averaging method for a two-point boundary problem for systems of integro-differential equations of Fredholm type. D.D. Bainov; G.H. Sarafova — 1977 Aequationes mathematicae
Application of partial averaging for a class of integro-differential equations of Fredholm type. D.D. Bainov; G.H. Sarafova — 1977 Aequationes mathematicae