Characterization of the potential of oil shales of different geological origin for the production of dicarboxylic acids using microwave oxidationMets, Birgit; Muldma, Kati; Simm, Aia; Kontson, Tiina; Lopp, Margus; Kaldas, KristiinaJournal of thermal analysis and calorimetry2025 / 12 p https://doi.org/10.1007/s10973-025-14802-8