1989 FB.
1989 FC
1989 FC
1989 FC.
1989 FC.
1989 February 10 meeting of the Royal Astronomical Society
1989 IEEE Nuclear Science Symposium, San Francisco, CA, Jan. 17-19, 1990, Proceedings
1989 ISSOL Meeting, Prague (Czechoslovakia), 3 - 8 Jul 1989.
1989 JA
1989 JA
1989 JA
1989 JA
1989 JA
1989 JA
1989 JA.
1989 January 13 (meeting)
1989 January 13 meeting of the Royal Astronomical Society
1989 Light Curves of BH Vir
1989 March 10 (meeting)
1989 March 30 (meeting)