1. Nekotorye Zamechaniya a chislennom reschenii integral'nykh yravnenii;Sobolev;Usp. mat. Nauk,1954
2. Integral Equations via Imbedding Methods;Kagiwada,1974
3. Extension of S. L. Sobolev's initial value method to nonlinear equations;Kagiwada;Nonlinear Analysis: Theory Meth. Applic.,1978
4. Sobolev type differential equations;Lakshmikantham;Appl. Math. Comp.,1978
5. Existence and comparison results for a class of Volterra integral equations of Sobolev type;Lakshmikantham;J. Integral Equations,1979