Neu, John T.; Gwinn, William D. (October 1958). "Raman Spectra of Germanium Tetrachloride and Lead Tetrachloride". Journal of the American Chemical Society. 70 (10): 3464–3465. doi:10.1021/ja01190a073. PMID18891892.
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pubmed.ncbi.nlm.nih.gov
Neu, John T.; Gwinn, William D. (October 1958). "Raman Spectra of Germanium Tetrachloride and Lead Tetrachloride". Journal of the American Chemical Society. 70 (10): 3464–3465. doi:10.1021/ja01190a073. PMID18891892.