1. Th.J. Ahrens, Mineral Physics and Crystallography. A Handbook of Physical Constants, American Geophysical Union, Washington, DC, 1995.
2. G. Boom, Three-dimensional object reconstruction by improved stereo-micrometry, Proc. Fifth European Congress on Electron Microscopy, 1972, pp. 364–365.
3. S.H.U. Bowie, K. Taylor, A system of ore mineral identification, Min. Mag. 99 (1958) 265–277 and 337–345.
4. Magnetite in the radula of the Polyplacophora;Carefoot;Proc. Malac. Soc. London,1965
5. G.A.D. Briggs, An Introduction to Scanning Acoustic Microscopy, Microscopy Handbooks 12, Royal Microscopical Society, Oxford Univ. Press, New York, 1985.