1970/68/1

Decompositions of a 3-cell

On subdirect embeddings in categories

Generalized connected functions

Tree-likeness of dendroids and λ-dendroids

A 2-complex is collapsible if and only if it admits a strongly convex metric

Ordered sets, semilattices, distributive lattices and Boolean algebras with homomorphic endomorphism semigroups

On the Baire system generated by a linear lattice of functions

Эффективные R-множества и трансфинитные продолжения рекурсивных иерархий

On convex metric spaces V

Concerning the ordering of shapes of compacta