Romakkaniemi, Idamaria, Juha Ahola, Johanna Panula-Perälä, Marja Mikola, Juuso Pyörälä, and Juha Tanskanen. 2024. “Solvent Fractionation of Technical Lignin Materials With Industrially Relevant Solvents”. Periodica Polytechnica Chemical Engineering 68 (2):181-94. https://doi.org/10.3311/PPch.23117.