Callant, M., Delmon, B., Grange, P., Holder, KA., & Viehe, HG. (1993). Secondary Effects in Catalytic Tests for Hydrodenitrogenation Reactions Due To Side Reactions With Sulfur-compounds. Journal of Catalysis, 142(2), 725-728. https://doi.org/10.1006/jcat.1993.1245 (Original work published 1993)