... We thank Dr. RG Bergman of the California Institute of Technology for interesting discussions and for making his results available to us before publication. ... Journal of the American Chemical Society / 91:8 / April 9, 1969
[Wang, Zhe; Campagna, Silvio; Yang, Kaihong; Xu, Guoyou; Pierce, Michael E.; Fortunak, Joseph M.; Confalone, Pat N. Journal of Organic Chemistry, 2000 , vol. 65, # 6 p. 1889 - 1891]
