Trieste Conference on Supermembranes and Physics in 2+1 Dimensions, ICTP, 17 - 21 July 1989.
Trip to India 1984:
(1),
(2),
(3),
(4)
T.
Curtright, R. Field, P. Sikivie, and C. Thorn (1981)
Stony Brook Supergravity Workshop, ITP, 27 -
29 September 1979.
Scottish Universities Summer School in Particle Physics, Edinburgh, 29 July - 19 August, 1973.