1. Delivered at the “Symposium on Structure and Reactivity of Complexes of Transition Metals in Low Valence States” in Sheffield, August 1969
2. π-Allyl-methylnickel
3. π-Allylmethylnickel
4. Cis- undtrans-Bis(π-allyl)nickel-Systeme
5. cis- andtrans-Bis-(π-allyl)nickel Systems