Richard Heinen Edited by ALT March 4, 2015 11:47 am Affiliation: learninglab Universität Duisburg – Essen Url: http://learninglab.uni-due.de Biography: learninglab – Universsutät Duisburg – Essen Sessions for Richard Heinen A federate reference structure in an open informational ecosystem [738] Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website