[1]JournalofHeterocyclicChemistry,1992,vol.29,p.691-697
[1]JournalofHeterocyclicChemistry,1992,vol.29,p.691-697
[1]JournalofHeterocyclicChemistry,1992,vol.29,p.691-697
[1]JournalofMolecularStructure,1995,vol.355,p.177-184
[1]JournalofHeterocyclicChemistry,1992,vol.29,p.691-697