PERSONÁLNÍ BIBLIOGRAFIE
Trch, Milan - Stehlíková, Naďa (autor statě) : Digital roots, casting out nines, reducing functions and their generalization. [Digital roots, casting out nines, reducing functions and their generalization]. In: Mundus Symbolicus 10, Praha, Katedra matematiky, VŠE Praha, 2002, s. 103-112, ISSN: 1210-809, stať ve sborníku z konference