Category bases.
Detlefsen, M., Szymański, Andrzej (1993)
International Journal of Mathematics and Mathematical Sciences
Similarity:
Detlefsen, M., Szymański, Andrzej (1993)
International Journal of Mathematics and Mathematical Sciences
Similarity:
Malgorzata Filipczak (1992)
Czechoslovak Mathematical Journal
Similarity:
Harry I. Miller (1981)
Časopis pro pěstování matematiky
Similarity: