Hassan KhosraviKendra M. L. CooperKirsty KittoRiPLE: Recommendation in Peer-Learning Environments Based on Knowledge Gaps and Interests.2017EDMhttp://educationaldatamining.org/EDM2017/proc_files/papers/paper_6.pdfconf/edm/2017db/conf/edm/edm2017.html#KhosraviCK17