[1]Patent:BE637389,1964, Chem.Abstr.,1965,vol.62
[1]Patent:BE637389,1964, Chem.Abstr.,1965,vol.62
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[1]AngewandteChemie-InternationalEdition,2006,vol.45,p.6885-6888
[1]Patent:BE637389,1964, Chem.Abstr.,1965,vol.62