1. 9th Biennial Conf. on Carbon;Krefeld,1969
2. 10th Biennial Conf. on Carbon;Krefeld,1971
3. Proc. 2nd Conf. on Industrial carbon and graphite;Williamson,1965
4. H.W. Davidson and H.H.W. Losty, Proc. Second Intern. Conf. on Peaceful uses of atomic energy, Vol. 7, 307.
5. Uranium and graphite;Losty;Inst. of Metals Monograph No. 27,1962