Thomas Krichel had the original idea. Now he does project coordination, overall user-system interaction design and some testing.
Ivan Kurmanov is the lead developer. He does all the coding and details of the user-system interaction design; he also made this website.
Christian M. Zimmermann is the principal implementor and tester. He has given a lot of advice on the user interface.
Sune Karlsson has been involved in testing and advice.
Ivan Bahcheyev worked with us as a developer in 2003.
Markus Klink implemented original HoPEc and created the logo.