Impact Factor
1.77
Estimated influence, citation density, publishing volume, and citation integrity from the analytics table.
Volume, recency, access pattern, and citing-community signals from the journal analytics record.
Recent article records with DOI-first linking and condensed abstracts.
Imprint varies.
Editor: 1968- C. Lian.
Also issued online.
Summaries in English and German.
Vol. 39, no. 1 (1990)19920916 Notice not published Printed on acid-free paper