References
- Erastov , O. A. and Nikonov , G. N. 1986 . “ Functionally-substituted phosphines and their derivatives ” . In Nauka 210 “” (eds., Moscow, p.
- Chekhlov , A. N. , Aksinenko , A. Yu. , Sokolov , V. B. and Martynov , I. V. 1991 . Dokl. Acad. Nauk (USSR) , 319 : 1396