[1]JournaloftheChemicalSociety,1949,p.2490,2494
[1]JournaloftheChemicalSociety,1949,p.2490,2494
[1]IndianJournalofChemistry-SectionBOrganicandMedicinalChemistry,1977,vol.15,p.1129-1132
[1]ZeitschriftfurChemie,1981,vol.21,p.101
[1]ZeitschriftfurChemie,1981,vol.21,p.101