Vasco Costa Delgado C, da Cunha Santos Forman GA, Antoinette Breuer RL. Organic Waste Bio-Based Materials for 3D Extrusion: Eggshells, Shells Sand and Coffee grains with Sodium Alginate. Convergences journal [Internet]. 2022 May 31 [cited 2025 Dec. 27];15(29):77-8. Available from: https://convergencias.ipcb.pt/index.php/convergences/article/view/133