“ Study on Sorption Characteristics of Citric Acid Modified Rape-Seed Pellet Considering the Chemical Pre-Treatment Processes ”. Hungarian Journal of Industry and Chemistry 39, no. 3 (September 1, 2011): 407–411. Accessed December 8, 2024. https://hjic.mk.uni-pannon.hu/index.php/hjic/article/view/457.