1. Introduction of conics in form 11 with the help of GeoGebra
Introduction of conics in form 11 with the help of GeoGebra / Otto Wurnig.In: Proceedings of the 8th International Conference on Technology in Mathematics Teaching [x, 46 s. + 1 CD-ROM]. ISBN 978-80-7041-285-5 (brož.) International Conference on Technology in Mathematics Teaching. Hradec Králové : Gaudeamus, 2007. s. 31-32.