1. The chemistry and uses of fire retardants;Lyons,1970
2. Heat resistant polymers-technologically useful materials;Critchley,1983
3. http://www.mst.dk/udgiv/Publications/1999/87-7909-416-3/html/kap01_eng.htm.
4. Recent developments in the chemistry of halogen-free flame retardant polymers
5. Stewart JR, Doctoral Thesis, University of Massachusetts, Department of Polymer Science and Engineering: Amherst; 2000.