By Eichler Frederik   Reinhardt Wolfgang   in Future Internet

ISSN:1999-5903|2|4|645-661

MDPI‎(2010)‎

Access to resources Favorite 13.412912

By Reinhardt Wolfgang   Mletzko Christian   Drachsler Hendrik   Sloep Peter B.   in Interactive Learning Environments

ISSN:1049-4820|22|5|594-613

Routledge Ltd‎(2014)‎

Access to resources Favorite 8.38307