1. Elder, J.P. and Harris, M.B., paper submitted to Fuel
2. Kissinger, H.E ., J, Res. NBS, 57, 217 (1956)
3. Hanaba, P., Jüntgen, H. and Peters, W. Brennstoffe-Chemie, 49, 368 (1968)
4. Garn, P.D ., CRC Critical Reviews in Analytical Chemistry, 65, Sept. 1972
5. S➃sták, J., and Berggren, G., Thermochim. Acta, 3, 1 (1971)