Author: Ujháziová, Renáta
- : Strapec problémov a otočenie (1). (Slovak) [Bunch of problems and rotation (1)]. Učitel matematiky, vol. 14 (2006), issue 1, pp. 9-16
- : Strapec problémov a otočenie (2). (Slovak) [Bunch of problems and rotation (2)]. Učitel matematiky, vol. 14 (2006), issue 2, pp. 77-90
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