Journal: |  | First Light in the Universe. Stars or QSO's? Proceedings of the 8th IAP Astrophysics Meeting, Institut d'Astrophysique, Paris, France, July 7-11, 1992. Edited by B. Rocca-Volmerange, B. Guiderdoni, M. Dennefeld, and J. Tran Thanh Van. Gif-sur-Yvette: Editions Frontieres, 1993., p.369 |