RT Journal Article
SR Electronic
A1 Růžička, Michal
A1 Wittmann, Edmund
T1 
JF e-Pedagogium
YR 2011
VO 11
IS 4
SP 81
OP 91
DO 10.5507/epd.2011.051
UL https://e-pedagogium.upol.cz/artkey/epd-201104-0006.php
AB