1. Barrette J, Levine M J, Braun-Muzinger P, Berkowitz G M, Gai M, Harris J W, Jachcinski C M and Ulhorn C D 1979Phys. Rev. C20 1759
2. Bernhardt K G, Bohn H, Eberhard K A, Vandenbosch R and Webb M P 1978 inNuclear molecular phenomena (ed.) N Cindro (Amsterdam: North-Holland) p. 367
3. Brady F P, Viggars D A, Conlon T W and Parker D J 1977Phys. Lett. 39 870
4. Braga Marcazzan M G and Milazzo Colli L 1970Prog. Nucl. Phys. 11 145
5. Brink D M and Stephen R O 1963Phys. Lett. 5 77