U. Esser

Literature 1988, Part 1

Literature 1987, Part 1

Literature 1985, Part 2

Literature 1986, Part 1

Literature 1985, Part 1

Literature 1987, Part 2

Literature 1978, Part 1

Literature 1974, Part 2

Astronomy and Astrophysics Abstracts

Literature 1976, Part 1

Author and Subject Indexes to Volumes 1–10 Literature 1969–1973