1. On some properties of viscoelasticity operators;Vorovich,1974
2. On the uniqueness of solution and certain approximate methods of solving linear viscoelasticity problems;Lebedev;PMM,1973
3. Functional Analysis;Iosida,1967
4. Problèmes aux Limites non Homogènes et Applications;Lyons,1968
5. Elliptic problems with a parameter and parabolic problems of a general kind;Agranovich,1964