1998/158/2

On backward stability of holomorphic dynamical systems

Decomposition of group-valued measures on orthoalgebras

On regular interstices and selective types in countable arithmetically saturated models of Peano Arithmetic

Dugundji extenders and retracts on generalized ordered spaces

Algebraic characterization of finite (branched) coverings

How to recognize a true ${\displaystyle {\Sigma }_3^0}$ set