Master in Physics, Sofia University, 1974. Doctor of Philosophy in Physics, Joint Institute Nuclear Research, Dubna, Russia, 1977. Doctor of Science (honorary), Joint Institute Nuclear Research, Dubna, Russia, 1983.
Senior research associate, Joint Institute Nuclear Research, 1974-1983; senior research associate, Bulgarian Academy Sciences, Sofia, 1983-1991; research associate, European Organization of Nuclear Research, Geneva, 1980-1981, 87-88; assistant, Bonn (Germany) U., 1991-1995; professor, U. Savoie, Annecy, France, since 1995.
Married Nikolina Borissova Stefanova, July 23, 1975. 1 child, Ivo.