G. Krow, R. Rodebaugh and J. Marakowski
Tetrahedron Letters, Volume 14, Issue 21, 1973, Pages 1899-1902
- DOI:
http://dx.doi.org/10.1016/S0040-4039(01)96271-9
Tetrahedron Letters, Volume 15, Issue 36, 1974, Pages 3167-3170
- DOI:
http://dx.doi.org/10.1016/S0040-4039(01)91851-9