Literature 1991, Part 2

"Astronomy and Astrophysics Abstracts" appearing twice ayear has become oneof the fundamental publications in thefields of astronomy, astrophysics andneighbouring sciences.It is the most important English-language abstractingjournal in the mentioned branches. The abstrats areclassified under more than a hundred subject categories,thus permitting a quick survey of the whole extendedmaterial. The AAA is a valuable and important publicationfor all students and scientists working in the fields ofastronomy and related sciences. As such it represents anecessary ingredient of any astronomical library all overthe world.