Miritoiu CM, Roșca AS, Tutunea D. Mechanical Properties of Composites Reinforced with Recycled Paper and Pine Needles Using Polymer Matrices Containing 50 to 70% Dammar Resin . BioRes [Internet]. 2025 Apr. 8 [cited 2025 Oct. 16];20(2):3884-909. Available from: https://ojs.bioresources.com/index.php/BRJ/article/view/24553