Separation of Fumaric and Maleic Acid Crystals from the Industrial Wastewater of Maleic Anhydride Production. Hung. J. Ind. Chem. [Internet]. 2022 Nov. 28 [cited 2025 Apr. 27];50(2):1-6. Available from: https://hjic.mk.uni-pannon.hu/index.php/hjic/article/view/1165