[1]Patent:CH567363,1975, Patent:DE2147588,1972, Chem.Abstr.,1972,vol.77
[1]Patent:CH567363,1975, Patent:DE2147588,1972, Chem.Abstr.,1972,vol.77
[1]Patent:CH567363,1975, Patent:DE2147588,1972, Chem.Abstr.,1972,vol.77
[1]Patent:CH567363,1975, Patent:DE2147588,1972, Chem.Abstr.,1972,vol.77
[1]Patent:CH567363,1975, Patent:DE2147588,1972, Chem.Abstr.,1972,vol.77