On the surjective span and semispan of connected metric spaces A. Lelek — 1977 Colloquium Mathematicae
Dimension inequalities for unions and mappings of separable metric spaces A. Lelek — 1971 Colloquium Mathematicae
On the dimension of quasi-components in peripherically compact spaces A. Lelek — 1962 Colloquium Mathematicae
On plane dendroids and their end points in the classical sense A. Lelek — 1961 Fundamenta Mathematicae