RT Journal Article
SR Electronic
A1 Yuhan, Xie
T1 
JF e-Pedagogium
YR 2011
VO 11
IS 2
SP 88
OP 104
DO 10.5507/epd.2011.024
UL https://e-pedagogium.upol.cz/artkey/epd-201102-0007.php
AB