1. Nickel: An Element with Wide Application in Industrial Homogeneous Catalysis
2. (a) W. Keim, R. S. Bauer, H. Chung, P. W. Glockner, H. van Zwet, G. Cannel, R. F. Mason and K. W. Barnett, (Shell Dev. Corp), US. Pat. 3 635 937 (1972), 3 637 636 (1972), 3 644 563 (1972), 3 644 564 (1972), 3 647 914 (1972), 3 647 915 (1972), 3 661 803 (1972), 3 686 159 (1972)
3. A new nickel complex for the oligomerization of ethylene
4. Vor- und Nachteile der homogenen Übergangsmetallkatalyse, dargestellt am SHOP-Prozeß