MECHANICAL PROPERTIES OF THREE-LAYERED PARTICLEBOARDS WITH FACE LAYERS OF BEECH AND OAK PARTICLES AND A CORE LAYER OF CONIFER AND SUNFLOWER STALKS PARTICLES. (2026). Innovation in Woodworking Industry and Engineering Design, 12(2). http://innojs.ltu.bg/index.php/scjournal-inno/article/view/369 (Original work published 2026)