Lozynski, Marek; Rusinska-Roszak, Danuta
Polish Journal of Chemistry, 1986 , vol. 60, # 4-6 p. 625 - 630

Colvin, Ernest W.; Robertson, Alan D.; Seebach, Dieter; Beck, Albert K.
Journal of the Chemical Society, Chemical Communications, 1981 , # 18 p. 952 - 953

Demming, Stefan; Langhals, Heinz
Chemische Berichte, 1988 , vol. 121, p. 225 - 230