Y Kyotani, April 14, 1993, "Business Development for Space Tourism", . A comment presented at
Space Tourism Study Conference held on April 14, 1993. Edited and translated into English from taped transcript originally in Japanese. Originally published in the
Journal of Space Technology and Science, Vol.9 No.1
'93 spring, pp.16-18.
Also downloadable from http://www.spacefuture.com/archive/business development for space tourism.shtml