1. K. Weissermel, H.J. Arpe, Industrial Organic Chemistry, VHC, Weinheim, 1993, p. 251.
2. J.F. Van Peppen, W.B. Fisher, C.H. Chan, in: Augustine (Ed.), R.L. Phenol Hydrogenation Process in Catalysis of Organic Reactions, Marcel Dekker, New York, 1980, p. 355.
3. W.B. Fisher, J.F. van Peppen, US Patent 4 162267 (1978).
4. S. Ulmer, E. Harry, Y. Chuen, US Patent 4 203923 (1980).
5. I. Dodgson, K. Griffin, G. Barberis, F. Pignataro, G. Tauszik, Chem. Ind. (1989) 830.