%0 Journal Article %J Organon F %D 2003 %T L. Keiser, Gottlob Frege, Leben - Werk - Zeit %A Berka, Karel %B Organon F %V 10 %P 111-115 %U http://www.klemens.sav.sk/fiusav/doc/organon/2003/1/111-115.pdf %9 Recenzie %2 Reviews %3 111115