MICROWAVE-ASSISTED LIGNIN SOLUBILIZATION IN PROTIC IONIC COMPOUNDS CONTAINING 2,3,4,5-TETRAPHENYL-1H-IMIDAZOLIUM AND INORGANIC ANIONS Статья Merino O., Cerón-Camacho R., Luque R., Martínez-Palou R. Waste and Biomass Valorization. Springer. 2019.