On the limits of the potential of the double distribution (Preliminary communication) Jiří Veselý (1969) Commentationes Mathematicae Universitatis Carolinae Similarity:
On the Neumann problem in potential theory (Preliminary communication) Josef Král (1966) Commentationes Mathematicae Universitatis Carolinae Similarity:
Cluster sets of arbitrary functions in Euclidean spaces (Preliminary communication) Luděk Zajíček (1972) Commentationes Mathematicae Universitatis Carolinae Similarity: