Marzban, N., and E. . Sarlaki. “CAN HYDROTHERMAL BIOMASS PROCESSING SERVE AS AN ANALOGUE OF MILLENNIA-SCALE NATURAL CARBON MATURATION? A UNIFIED PERSPECTIVE ON CARBONISATION, HUMIFICATION, AND FULVIFICATION”. Planetary Sustainability, vol. 4, no. 1, Jan. 2026, pp. 22-47, doi:10.46754/ps.2026.01.002.