Cameron, 1970 Cameron, E. N. (1970), "Opaque minerals in certain lunar rocks from Apollo 11", Proceedings of the Apollo 11 Lunar Science Conference (5–8 January 1970, Houston, TX), : Geochimica et Cosmochimica Acta Supplement, 1: Mineralogy and Petrology: 193—206, Bibcode:1970GeCAS...1..221C
Dence et al., 1970, p. 324 Dence, M. R.; Douglas, J. A. V.; Plant, A. G.; Traill, R. J. (1970), "Petrology, Mineralogy and Deformation of Apollo 11 Samples", Proceedings of the Apollo 11 Lunar Science Conference (5–8 January 1970, Houston, TX), : Geochimica et Cosmochimica Acta Supplement, 1: Mineralogy and Petrology: 315—340, Bibcode:1970GeCAS...1..315D