[1]Brigas;Johnstone[TetrahedronLetters,1990,vol.31,#40,p.5789-5790]
[1]Brigas;Johnstone[TetrahedronLetters,1990,vol.31,#40,p.5789-5790]
[1]Brigas;Johnstone[TetrahedronLetters,1990,vol.31,#40,p.5789-5790]
[1]Brigas;Johnstone[TetrahedronLetters,1990,vol.31,#40,p.5789-5790]
[1]Brigas;Johnstone[TetrahedronLetters,1990,vol.31,#40,p.5789-5790]