On the quasi-uniform convergence of transfinite sequences of functions. Ewert, J. — 1993 Acta Mathematica Universitatis Comenianae. New Series
Semi-closure and related topics in Hashimoto topologies J. Ewert — 1989 Commentationes Mathematicae The article contains no abstract
Baire classification and multivalued maps J. Ewert — 1987 Commentationes Mathematicae The article contains no abstract
Semicontinuity of maps which are limits of sequences of quasi-continuous maltivalued maps J. Ewert — 1987 Matematički Vesnik