Wilhelm, M.: Open relations.
(English).
In:
Frolík, Z. (ed.): Abstracta. 8th Winter School on Abstract Analysis.
Czechoslovak Academy of Sciences, Praha, 1980.
pp. 199-202
Wilhelm, M.: $\Delta$ -closed graph theorem.
(English).
In:
Frolík, Z. (ed.): Abstracta. 6th Winter School on Abstract Analysis.
Czechoslovak Academy of Sciences, Praha, 1978.
pp. 87-90
Wilhelm, M.: Completeness and continuity of lattice-seminorms.
(English).
In:
Frolík, Z. (ed.): Abstracta. 5th Winter School on Abstract Analysis.
Czechoslovak Academy of Sciences, Praha, 1977.
pp. 115-117