RT Journal Article SR Electronic A1 Valenta, Milan A1 MichalĂ­k, Jan A1 Raver-Lampman, Sharon A1 Michalek, Anne T1 JF e-Pedagogium YR 2011 VO 11 IS 4 SP 102 OP 119 DO 10.5507/epd.2011.053 UL https://e-pedagogium.upol.cz/artkey/epd-201104-0008.php AB