1Antan, J.,Custosmr relatbndip management: making hard decisions with soft numbers, Prentice Hall, Upper Saddle River, NJ, 1996.
2Bannock G., Baxter R E., Davis E. (Eds.), The Penguin Dictionary of Economics, Penguin Pubrlshing, ISBN 0140513760, 1998.
3Breu C, Meckl N, Sametinger J., WORM: Web-based Carrnunication and Project Mamgement, IASTED International Conference on Internet and Multimedia Systems and Applications IMSA2001, Hawaii, USA, August 2001.