ORGANIC LETTERS, vol. 6, no. 16, page. 2669 - 2672, 2004-08-05
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 126, no. 21, page. 6528 - 6529, 2004-06-02
TETRAHEDRON LETTERS, vol. 45, no. 18, page. 3543 - 3546, 2004-04-26