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[1]Limpach[ChemischeBerichte,1888,vol.21,p.646]
[1]Smith;Taylor[JournaloftheAmericanChemicalSociety,1935,vol.57,p.2460,2462]
[1]Smith;Taylor[JournaloftheAmericanChemicalSociety,1935,vol.57,p.2460,2462]
[1]Smith;Horner[JournaloftheAmericanChemicalSociety,1940,vol.62,p.1349,1353]