کتاب های Geretschlager R.
A Central European Olympiad: The Mathematical Duel
Geretschlager R., Kalinowski J., Svrcek J., 2018
A Central European Olympiad: The mathematical duel
Geretschläger, Robert; Kalinowski, Józef; Švrček, Jaroslav, 2018
Geometry in Our Three-Dimensional World (Problem Solving in Mathematics and Beyond) (Problem Solving in Mathematics and Beyond, 25)
Alfred S Posamentier, Bernd Thaller, Christian Dorner, Robert Geretschläger, Guenter Maresch, Christian Spreitzer, David Stuhlpfarrer, 2021
