Trichkov, Neno, Nikolay Neykov, and Angel Petkov. “DETERMINATION OF ASSORTMENT STRUCTURE DURING PLANNING THE BREAK EVEN IN WOODWORKING ENTERPRISES”. Innovation in Woodworking Industry and Engineering design 1, no. 1 (May 20, 2012). Accessed April 14, 2026. http://innojs.ltu.bg/index.php/scjournal-inno/article/view/28.