Dieuwke de Haan Patrick E. Waterson Sonja Trapp Dietmar Pfahl Integrating Needs Assessment Within Next Generation E-learning Systems. 113-120 2003 conf/ifip3/2003e eTRAIN http://dx.doi.org/10.1007/0-387-23572-8_14 db/conf/ifip3/ifip3-2003e.html#HaanWTP03