Contact Frank

In general I highly prefer e-mail over any other form of communication. I answer any reasonable e-mail addressed to me personally, but sometimes you have to be patient. If possible, please encrypt your message with one of the keys below. Sometimes I react to Jabber messages, but only if I notice them and have some time.

If you would like to meet me in person it is usually also a good idea to send me a brief e-mail first with some details about you and what you want. Do not forget to let me know when you are available and note that I strongly believe that early morning is ideal for sleeping and the ideal time for working (as in doing things, not talking to people) is when the sun is not visible.

E-Mail

frank@langbein.org
F.C.Langbein@cs.cf.ac.uk
Alternative addresses:
- LangbeinFC@Cardiff.ac.uk
- langbeinf@member.ams.org
- langbein@ieee.org
- tdl@uni.de
Old addresses, please do not use them:
- langbein@mathematik.uni-stuttgart.de

Public GnuPG/PGP Keys

frank_langbein_org.gpg (GnuPG) - preferred key: Frank C. Langbein <frank@langbein.org>
Frank C. Langbein <langbein@ieee.org>
Frank C. Langbein <F.C.Langbein@cs.cf.ac.uk>
Frank C. Langbein <langbeinf@member.ams.org>
Frank C. Langbein <tdl@uni.de>
frank_langbein_org.pgp (PGP-I): Frank C. Langbein <frank@langbein.org>
f_c_langbein_cs_cf_ac_uk.pgp (PGP-I): Frank C. Langbein <F.C.Langbein@cs.cf.ac.uk>
Frank C. Langbein <LangbeinFC@Cardiff.ac.uk>
tdl_uni_de.pgp (PGP-I): Frank C. Langbein <tdl@uni.de> (2 keys)
langbein_mathematik_uni-stuttgart_de.pgp (PGP-I): Frank C. Langbein <langbein@mathematik.uni-stuttgart.de>
Frank C. Langbein <langbeinf@member.ams.org>