Here I publish only the very general contact details:

Snail Address:

Christian Langkamp,
Am Bilderstock 10, 41352 Korschenbroich, Germany

Homepage: www.langkamp.eu

Email : christian.langkamp - at - gmx.de
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More useful items (current mobile number, frequently checked email address, current address, ...) I share only with people I know. For that they are all posted on the Internet platforms Xing and Facebook, which I update in case of any changes.