Das wichtige Thema Gebet ist wie ein goldener Faden in fast alle Werke Martin Luthers eingewoben....

In June 1983 the Astronomical Institute of the State University of Groningen, founded by Kapteyn ...

Welcoming Address.- 1: Structure of Star-Forming Regions.- The structure of star-forming regions-...

On the occasion of the retirement of Ulrich Schwarz, a symposium was held in Groningen in May of ...

Interstellar matter is one of the most active fields of research in present-day astronomy. Observ...

Jan H. Oort's work.- Meritus Emeritus.- Jan Hendrik Oort and Dutch astronomy.- Oort's scientific ...

Adriaan Blaauw; Emeritus Professor of Astronomy at the Universities of Groningen and Leiden, form...

Jan H. Oort's work.- Meritus Emeritus.- Jan Hendrik Oort and Dutch astronomy.- Oort's scientific ...

On the occasion of the retirement of Ulrich Schwarz, a symposium was held in Groningen in May of ...