ARTS AND MUSIC IN CULTURAL DISCOURSE
VI International Scientific and Practical Conference. November 10 - November 11, 2017, Rezekne Academy of Technologies, Rezekne, Latvia

Mitev, Ivan, Faculty of  Economics, Technical University of Gabrovo, Bulgaria

• Environment. Technology. Resources. 14th International Scientific and Practical Conference - ENGINEERING SCIENCES AND PRODUCTION TECHNOLOGIES
  LOCAL PROCESSING OF NON-METAL MATERIALS WITH CONCENTRATED ENERGY FLOW
  Abstract