Grigorov, R. and Savov, V. 2023. MECHANICAL PROPERTIES OF THREE-LAYERED PARTICLEBOARDS WITH FACE LAYERS OF BEECH AND OAK PARTICLES AND A CORE LAYER OF CONIFER AND SUNFLOWER STALKS PARTICLES. Innovation in Woodworking Industry and Engineering design. 12, 2 (Dec. 2023). DOI:https://doi.org/10.66211/inno.2023.2.369.