RT Journal Article SR Electronic A1 Wiegerová, Adriana A1 Hamplová, Dana T1 JF e-Pedagogium YR 2015 VO 15 IS 4 SP 58 OP 78 DO 10.5507/epd.2015.047 UL https://e-pedagogium.upol.cz/artkey/epd-201504-0007.php AB