Herbstein, F. H.; Smuts, J. (1964). "Comparison of X-ray and neutron-diffraction refinements of the structure of cementite Fe3C". Acta Crystallographica. 17 (10): 1331-1332. Bibcode:1964AcCry..17.1331H. doi:10.1107/S0365110X64003346.
Herbstein, F. H.; Smuts, J. (1964). "Comparison of X-ray and neutron-diffraction refinements of the structure of cementite Fe3C". Acta Crystallographica. 17 (10): 1331-1332. Bibcode:1964AcCry..17.1331H. doi:10.1107/S0365110X64003346.