1. Ed. A Guide to Organophosphorus Chemistry; Wiley Interscience: New York, 2000, p 151.
2. Acetodiphosphorige Säure
3. ; Belgian Patent 672,168, 1966.
4. Henkel. Belgian Patent 619,619; 619,620; 619,621, 1962.
5. Monsanto. French Patent 1,521,961; 1,521,962; 1,561,963, 1968.