参考文献

Newton, A. S.; Warf, J. C.; Spedding, F. H.; Johnson, O.; Johns, I. B.; et. al Nucleonics, 1949 , vol. 4, # 2 p. 17 - 25 Full Text Show Details Gmelin Handbook: C: MVol.D3, 2.2.8.7.4, page 100 - 100