Superstrings '89. Proceedings of the Trieste Spring School, 3-14 April 1989.
Green, M.
Superstrings '89. Proceedings of the Trieste Spring School, 3-14 April 1989. - Singapore World Scientific 1990 - .
9810201389
Superstrings '89. Proceedings of the Trieste Spring School, 3-14 April 1989. - Singapore World Scientific 1990 - .
9810201389