Volume 4, No. 2 (1985)

Some local and nonlocal boundary value problems for hyperbolic equations (in Russian)

Über das asymptotische Verhalten der Lösungen einer linearen Differentialgleichung mit Nachwirkung

Mean Value Theorem for Functions Possessing First Order Convex Approximations. Applications in Optimization Theory

The maximum principle in linear problems with mixed convex constraints (in Russian)