"Die Bibliographie wird von Astrid Klapp-Lehrmann bearbeitet und herausgegeben." = "La bibliographie est révisée et dirigée par Astrid Klapp-Lehrmann." = "The bibliography is compiled and edited by Astrid Klapp-Lehrmann."
"The content of the Klapp has also been available in an online version since 2013"--About Klapp-Online page (English version).
In German, English, and French.
Description based on contents viewed on April 14, 2016; title from home page.