T. Kiguradze:
         On periodic in the plane solutions of second order linear
         hyperbolic systems
         p. 253-272
   Postscript   (186 K)
       M. T. McGregor:
         On a generalized Wiener-Hopf integral equation
         p. 273-278
   Postscript   (67 K)
       M. Kuril:
         A multiplication of e-varieties of regular E-solid semigroups
         by inverse semigroup varieties
         p. 279-299
   Postscript   (253 K)
       M. Marin:
         On the domain of influence in thermoelasticity
         of bodies with voids
         p. 301-308
   Postscript   (100 K)
       J. Dzurina:
         Oscillation of a second order delay differential equations
         p. 309-314
   Postscript   (71 K)
       M. Ashraf:
         Commutativity of associative rings through
         a Streb's classification
         p. 315-321
   Postscript   (87 K)
       M. Bartusek:
         On the structure of oscillatory solutions
         of a third order differential equation
         p. 323-334
   Postscript   (129 K)
       S. Stanek:
         On a criterion for the existence of at least
         four solutions of functional boundary value problems
         p. 335-348
   Postscript   (212 K)
       A. Swann:
         Some remarks on quaternion-Hermitian manifolds
         p. 349-354
   Postscript   (140 K)
       A. Elbert, Takasi Kusano, Tomoyuki Tanigawa:
         An oscillatory half-linear differential equation
         p. 355-361
   Postscript   (132 K)