1. K. Weissermel, H.J. Arpe, in: Industrial Organic Chemistry, 2nd edn., VHC, Weinheim, 1993, p. 251.
2. J.F. van Peppen, W.B. Fisher, C.H. Chan, in: R.L. Augustine (Ed.), Phenol Hydrogenation Process in Catalysis of Organic Reactions, Marcel-Dekker, New York, 1980, p. 355.
3. I. Dodgson, K. Griffin, G. Barberis, F. Pignataro, G. Tauszik, Chem. Ind. (1989) 830.
4. W.B. Fisher, J.F. van Peppen, US Patent 4 162 267 (1978).
5. S. Ulmer, E. Harry, Y. Chuen, US Patent 4 203 923 (1980).