Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Baruch Offir, Yossi Lev, Rachel Bezalel. Surface and deep learning processes in distance education: Synchronous versus asynchronous systems. Computers & Education, 51(3):1172-1183, 2008. [doi]