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Keene, F. R., and Searle, G.H. (1972) Isomers of the bis(diethylenetriamine)cobalt(III) ion and a new source of optical activity. Inorganic Chemistry, 11 (1). pp. 148-156.

Fraser, Neil (1972) Geology and mineralization, United North Australian Mine, Watsonville, North Queensland. Honours thesis, James Cook University of North Queensland.

Searle, G.H., Petkovic, M., and Keene, F.R. (1972) The synthesis of 4,7-dimethyltriethylenetetramine. Australian Journal of Chemistry, 25 (9). pp. 2045-2048.