Mladenova, Diyana, Evgeni Tsavkov, and Nikolai Bardarov. “STUDY ON THE DENSITY OF OAK WOOD”. Innovation in Woodworking Industry and Engineering design 6, no. 1 (May 21, 2017). Accessed May 31, 2026. https://innojs.ltu.bg/index.php/scjournal-inno/article/view/152.