My personal address is:

Dr. Jochen Klar
Cheruskerstr. 3
10829 Berlin
Mail: mail [at] jochenklar [dot] de

My work address is

Leibniz-Institut für Astrophysik Potsdam (AIP)
Jochen Klar
An der Sternwarte 16
14482 Potsdam
Phone: +49 (0) 331 7499 536
Mail: jklar [at] aip [dot] de

You can reach me via jabber

jabber [at] jochenklar [dot] de

You can find me also on facebook, twitter, google+, Xing, github, and orcid.

On my private mail account I accept encrypted mails. My public GnuPG key has the ID 316B66EF and can be found on the usual key servers. The fingerprint is BCAA 3245 23C1 BF56 93A2 D5EE A3B9 1625 316B 66EF. The full key can be found here.