// <I>Proceedings<D> of the 6th national conference with international participation ETAI' 2003, Ohrid, Macedonia, 17-20 september, 2003. - Ohrid, 2003, Т49 - Т53.
S. Radeva; D. Radev; M. T. Marinov
Каталог "Библиографии" | Статии от книги - библиография
// <I>EDULEARN 2020<D> : 12th International conference on ''Education and new learning technologies 2020'', Online conference, Barcelona, Spain, 6-7 july 2020 : Proc., 2020, p. 1091-1100, DOI: 10.21125/edulearn.2020.0370.