Around Apéry's constant. Janous, Walther — 2006 JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]
The Hlawka-Djoković inequality and points in unitary spaces. Janous, Walther — 2007 General Mathematics
Es gibt unendlich viele Primzahlen - der Satz von Euklid Šefket Arslanagić; Walther Janous — 2007 The Teaching of Mathematics