Sustainable management of tropical timber residues for greenhouse gas mitigation: enhanced biogas recovery via hydrothermal-alkaline pretreatment - Rufis Fregue Tiegam Tagne; Junie Albine Kenfack Atangana; Ndongo Gervais Kounou; Satyanarayana Narra; Olivier Ndjapi; Ioana Ionel (Waste Management, 2026)