@book{11037,
	author = {International Symposium Black Holes, Membranes, Wormholes and Superstrings and Kalara, Sunny, ed. and National Aeronautics and Space Administration.},
	title = {Black holes, membranes, wormholes and superstrings},
	publisher = {World Scientific},
	year = {1993},
	address = {Singapore}
}