1981-- the bicentenary of Bernard Bolzano
Jiří Jarník, Štefan Schwabik (1982)
Czechoslovak Mathematical Journal
Similarity:
Jiří Jarník, Štefan Schwabik (1982)
Czechoslovak Mathematical Journal
Similarity:
Similarity:
Alena Šolcová (2005)
Acta Universitatis Carolinae. Mathematica et Physica
Similarity:
Jiří Veselý (2011)
Acta Universitatis Carolinae. Mathematica et Physica
Similarity: