1. Metalloclusters of the Nitrogenases;Smith;Eur J Biochem,1992
2. Nitrogenase Structure — Where to Now?;Orme-Johnson;Science,1992
3. Biological Nitrogen Fixation,1992
4. Stiefel E.I., Coucouvanis D., Newton WE (eds): Molybdenum Enzymes, Cofactors and Model Systems. Washington, DC: American Chemical Society