POPOVA, Radostina. GUIDELINES FOR THE STUDY OF INNOVATION ACTIVITIES OF THE ENTERPRISES IN THE FOREST INDUSTRY. Innovation in Woodworking Industry and Engineering design, [S. l.], v. 4, n. 2, 2015. Disponível em: http://innojs.ltu.bg/index.php/scjournal-inno/article/view/143. Acesso em: 14 apr. 2026.