1. Atneosen R A, Thomas T D and Garvey G T 1965Phys. Rev. 139 B307
2. Carjan N, Sandulescu A and Pashkevich V V 1975Phys. Rev. C11 782
3. Feather N 1964Proc. R. Soc. Edinburgh A66 192
4. Feather N 1969Proc. R. Soc. Edinburgh A68 229
5. Fong P 1970Phys. Rev. C2 735