SUNFLOWER STALKS AND LIGNOSULFONATE – ALTERNATIVE RAW MATERIALS FOR THE PRODUCTION OF ECO-FRIENDLY MEDIUM DENSITY FIBREBOARDS. INNO [Internet]. 2026 Jan. 30 [cited 2026 Feb. 25];12(1). Available from: http://innojs.ltu.bg/index.php/scjournal-inno/article/view/355