Spectroscopic observations at the time of the SL9 impacts
By: al-Suud, Muqrin Bin Abd al-Aziz; Basirh, Hasan Bin Muhammad; Mallawi, Abd al-Rahman Bin Ali…[et al.]. Journal of King Abdulaziz University : Sciences. Vol. 9, no. 1 (Dec. 1997), pp.53-57, 5 p.
Subjects: Astronomical observatories