TETRAHEDRON LETTERS, vol. 45, no. 38, page. 7057 - 7059, 2004-09-13
ORGANIC LETTERS, vol. 7, no. 6, page. 1077 - 1079, 2005-03-17
SYNTHESIS-STUTTGART, no. 22, page. 3790 - 3794, 2006-11-17