By Acker Frederik   in Education and Information Technologies

ISSN:1360-2357|18|3|495-514

Springer Publishing Company ‎(2013)‎

Access to resources Favorite 19.916857

By Acker Frederik   Theuns Peter   in Quality and Quantity

ISSN:0033-5177|44|6|1129-1137

Springer Publishing Company ‎(2010)‎

Access to resources Favorite 15.933485

By Hofmans Joeri   Theuns Peter   Acker Frederik   in Quality and Quantity

ISSN:0033-5177|43|5|703-716

Springer Publishing Company ‎(2009)‎

Access to resources Favorite 11.950114