ORGANIC & BIOMOLECULAR CHEMISTRY, vol. 6, no. 4, page. 712 - 718, 2008-01
ORGANIC & BIOMOLECULAR CHEMISTRY, vol. 5, no. 4, page. 610 - 612, 2007-01
ORGANIC LETTERS, vol. 7, no. 9, page. 1741 - 1744, 2005-04-28