RT Journal Article
SR Electronic
A1 Polášek, Vladimír
A1 Sedláček, Lubomír
T1 
JF e-Pedagogium
YR 2014
VO 14
IS 4
SP 7
OP 17
DO 10.5507/epd.2014.037
UL https://e-pedagogium.upol.cz/artkey/epd-201404-0002.php
AB