1. Abu-Eid, R. M.: Absorption spectra and phase transformations of minerals at pressures up to 200 kilobars. Ph. D. Diss., MIT, 474 pp. (1975)
2. Ahsbahs, H., Dehnicke, G., Dehnicke, K., Hellner, E.: IR-spectra of different transition metal complexes under high pressure. Europ. High Press. Conf., Marburg, Germany, Abstr., p. 26 (1974)
3. Bell, P. M.: Analysis of olivine crystals in Apollo 12 rocks. Ann. Rept. Geophys. Lab., Year Book 69, 228?229 (1970)
4. Birle, J. D., Gibbs, G. V., Moore, P. B., Smith, J. V.: Crystal structures of natural olivines. Am. Mineralogist 53, 807?824 (1968)
5. Blagul'kina, V. A.: Relation of some inclusions in kimberlites with their diamond content. Soviet Geol. 4, 52?62 (1974)