Reference
- Baudler , M. and Glinka , K. 1987 . The Chemistry of Inorganic Homo-and Hetrocycles , Edited by: Haiduc , I. and Sowerby , D. B. Vol 2 , 423 – 461 . London : Academic press . Chap 18, and literature cited therein
- Breunig , H. J. 1994 . The Chemistry of Organic arsenic, antimony and bismuth compounds , Edited by: Patai , S. 563 – 577 . Chichester : J. Wiley . Chap. 14, and literature cited therein