[1]Jacobs;Heidelberger[JournaloftheAmericanChemicalSociety,1917,vol.39,p.2190]
[1]Freedman;Frost[JournalofOrganicChemistry,1958,vol.23,p.1292,1297]
[1]Jacobs;Heidelberger[JournaloftheAmericanChemicalSociety,1917,vol.39,p.2190]
[2]BAKER;LEE;SKINNER;MARTINEZ;TONG[Journalofmedicinalandpharmaceuticalchemistry,1960,vol.2,p.633-657]