I. Scott, P. Greenberg, and P. Phillips. Internal medicine journal, 38 (6):
384-7(June 2008)6622<m:linebreak></m:linebreak>JID: 101092952; ppublish;<m:linebreak></m:linebreak>Recursos/Organització; Recerca clínica; Formació.
M. Klawe, and E. Phillips. CSCL '95: The first international conference on Computer support for collaborative learning, page 209--213. Mahwah, NJ, USA, Lawrence Erlbaum Associates, Inc., (1995)