Dumitru Dan Burdescu Marian Cristian Mihaescu Bogdan Logofatu A Structure for Management of Requirements Set for e-Learning Applications. 46-58 2008 SEAFOOD http://dx.doi.org/10.1007/978-3-642-01856-5_4 conf/seafood/2008 db/conf/seafood/seafood2008.html#BurdescuML08