1 2 3 Scherzer,Julius(1996).Hydrocracking Science and Technology.CRC press.ISBN0-8247-9760-4
↑ Pascal P. Man, Marie Jeanne Peltre and Denise Barthomeuf(1990).“Nuclear magnetic resonance study of the dealumination of an amorphous silica–alumina catalyst”.J. Chem. Soc., Faraday Trans.86: 1599-1602.doi:10.1039/FT9908601599.
↑ Perry,Dale L(1992).Applications of Analytical Techniques to the Characterization of Materials: proceedings of a symposium on applications of analytical techniques to the characterization of materials, held August 29–30, 1990.American Chemical Society Division of Industrial and Engineering Chemistry, Dale L. Perry, Springer.ISBN0-306-44189-6
↑ John Arthur Joule, Keith Mills(2000).Heterocyclic Chemistry, 4th edition.Blackwell Publishing.ISBN0-632-05453-0