scientific article
author: Irmgard Sinning, Otto Berninghausen, Iris Holdermann, Bettina Bradatsch, Gert Bange, Ed Hurt, Roland Beckmann, Matthias Thoms, Christoph Leidig
Copyright status information is not available for this work. The copyright status depends on the jurisdiction, the author's date of death and the date the work was created or published.
To learn more about copyright terms in different countries, visit the countries and terms page.