1. Burgess BK (1985) Nitrogenase. In:Spiro TG (ed) Molibdenum enzymes. Wiley, New York, chap 4
2. Nicholas KM, Nestle MO, Seyferth D (1978) The potential utility of transition metal alkyne complexes and derived cluster compounds as reagents in organic synthesis. In:Alper H (ed) Transition metal organometallics in organic synthesis, vol 2. Academic Press, New York, p 1;Otsuka S, Nakamura A (1976) Adv Organomet Chem 14: 245;Khan MMT, Martell AE (1974) Homogeneous catalysis by metal complexes, vol 2, activation of alkenes and alkynes. Academic Press, New York;Heaton CA (1984) An introduction to industrial chemistry. Leonard Hill, Blackie and Son, Glasgow;Parshall GW (1980) Homogeneous catalysis. Wiley, New York
3. Kukushkin YN (1981) Koord Khim 7: 323;Storhoff BN, Lewis HC (1977) Coord Chem Rev 23: 1;Walton RA (1965) Quart Rev Chem 19: 126
4. Pombeiro AJL (1980) Reaction of ligands analogous to dinitrogen on dinitrogen bindings sites. In:Chatt J, da C�mara Pina LM, Richards RL (eds) New trends in the chemistry of nitrogen fixation. Academic Press, London, p 267
5. Pombeiro AJL (1980) Preparation, structure, bonding, and reactivity of dinitrogen complexes. In:Chatt J, da C�mara Pina LM, Richards RL (ed) New trends in the chemistry of nitrogen fixation. Academic Press, London, p 163