1990 and 1991 Photometry of UZ Librae

1990 and 1991 UBVRI Photometry of FK Comae

1990 and 1991 UBVRI Photometry of HD 199178 = V1794 Cyg

1990 BA

1990 BV Photoelectric Observations of CG Cyg

1990 BVR Photometry of XY UMa

1990 Comet Handbook

1990 December 14 meeting of the Royal Astronomical Society

1990 February 9 meeting of the Royal Astronomical Society

1990 Gordon conference on the origin of life

1990 January 12 meeting of the Royal Astronomical Society

1990 March 9 meeting of the Royal Astronomical Society

1990 May 11 meeting of the Royal Astronomical Society

1990 MB, Mars Trojan.

1990 MF

1990 MF.

1990 November 9 meeting of the Royal Astronomical Society

1990 October 12 meeting of the Royal Astronomical Society

1990 Optical Elliptical Polarimetry and Centimeter Flux Observations of the Very Active Solar-Type Star HD 129333

1990 OS