Number theory. Proceedings of the 15th journées arithmétiques held in Ulm, FRG, September 14-18, 1987
The articles of this volume will be reviewed individually under the abbreviation ``Number theory, Proc. 15th Journ. Arith., Ulm/FRG 1987, Lect. Notes Math. 1380 (1989)''.
scientific article; zbMATH DE number 194672