Development and Characterization of Sustainable Biocomposites from Wood Fibers, Spent Coffee Grounds, and Ammonium Lignosulfonate. - Savov, Viktor; Antov, Petar; Kostadinova-Slaveva, Alexsandrina; Yusein, Jansu; Dudeva, Viktoria; Todorova, Ekaterina; Petrin, Stoyko (Polymers (20734360), 2025)