%0 Journal Article %K Web Services %K Trust-Levels %K FOAF %K Ontologies %B International Journal of Interactive Multimedia and Artificial Intelligence %D 2010 %N A Direct Path to Intelligent Tools %P 20-26 %R 10.9781/ijimai.2010.134 %T Trust Levels Definition On Virtual Learning Platforms Through Semantic Languages %U http://www.ijimai.org/journal/sites/default/files/IJIMAI20101_3_4.pdf %V 1 %8 12/2010