Digital design learning system based on Java appletsJutman, Artur; Sudnitsõn, Aleksander; Ubar, Raimund-Johannes4th Annual Conference of the LTSN Centre for Information and Computer Sciences : 26th-28th August 2002, NUI Galway, Ireland2003 / p. 183-187 : illhttps://pld.ttu.ee/dildis/publications/Sudnitson%20LTSN-ICS%202003.pdf