[1]CurrentPatentAssignee:PFIZERINC-US2855385,1957,A
[1]Petropoulos;Fisher[JournaloftheAmericanChemicalSociety,1958,vol.80,p.1938,1940]
[1]Petropoulos;Fisher[JournaloftheAmericanChemicalSociety,1958,vol.80,p.1938,1940]
[1]Petsom,Amorn;Lund,Henning[ActachemicaScandinavica.SeriesB:Organicchemistryandbiochemistry,1980,vol.34,#9,p.693-694]