// <I>Inventiveness<D> as a Condition of Industrial Developmen: Intern. Scientific Symposium, Beograd, 10-11 Oktober 1996 Proc.- Beograd : Federal Ministry for Development, Science and Enviroment, 1996, p. 5.147-5.152.
(1996)
K. Andonov; V. B. Stoyanov; K. Martev;
Varro E. Tyler;
P. Daskalov и др.