[1]Soperetal.[JournaloftheAmericanChemicalSociety,1948,vol.70,p.2849,2851]
[1]Soperetal.[JournaloftheAmericanChemicalSociety,1948,vol.70,p.2849,2851]
[1]Baldwin;Pratt;Moloney[Tetrahedron,1987,vol.43,#11,p.2565-2575]
[1]Baldwin;Pratt;Moloney[Tetrahedron,1987,vol.43,#11,p.2565-2575]