Simeonova R, Marinova A, Jivkov V. STUDY ON STIFFNESS COEFFICIENTS UNDER BENDING TEST OF END CORNER DETACHABLE JOINTS OF STRUCTURAL ELEMENTS MADE OF PLYWOOD. INNO. 2015;4(1). Accessed April 14, 2026. http://innojs.ltu.bg/index.php/scjournal-inno/article/view/129