1. Workshop on Fundamental Research in Homogeneous Catalysis as Related to U.S. Energy Needs Stanford University Stanford Calif. 4 to 6 December (1974).
2. Deeming, A. J., Journal of the Chemical Society, Chemical Communications: 277 (1973).
3. Mosaic 7 5: 22 (1976).
4. Belgian patent 815-841 (1974).
5. U.S. patent 3 833 634 (1974).