TETRAHEDRON LETTERS, vol. 33, no. 45, page. 6811 - 6814, 1992-11-03
TETRAHEDRON LETTERS, vol. 33, no. 18, page. 2557 - 2560, 1992-04-28
TETRAHEDRON-ASYMMETRY, vol. 2, no. 12, page. 1359 - 1370, 1991-01
TETRAHEDRON-ASYMMETRY, vol. 2, no. 1, page. 27 - 30, 1991-01
SYNTHETIC COMMUNICATIONS, vol. 21, no. 7, page. 859 - 867, 1991-01
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 112, no. 17, page. 6263 - 6276, 1990-08-15