Paleogene stages and their boundaries [a meeting of the International Subcommission on Paleogene Stratigraphy was held at the Institute and Museum of Geology and Paleontology, University of Tübingen during December 7 - 8, 1990 ... Some of the papers presented at the meeting are publ. in this volume] (Schweizerbart, 1992)
Einzelaufnahme eines Zs.-Heftes