1974/84/1

Maximally almost periodic groups and varieties of topological groups

Set existence principles of Shoenfield, Ackermann, and Powell

Lusin density and Ceder's differentiable restrictions of arbitrary real functions

Mutational retracts and extensions of mutations

On the inequivalence of the Borsuk and the H-shape theories for arbitrary metric spaces

A normal form for some semigroups generated by idempotents

A remark on a paper of H. Höft