Tübingen Üniversitesi www.uni-tuebingen.de/troia

Chicago Üniversitesi www.oi.uchicago.edu

Pubweb www.pubweb.parc.xerex.com/map

Homer www.homer.span.ch

Salve www.salve.edu/~romanemp/~spaw1241/

Sunsite http://sunsite/informatik.rwth-aachen.de

Henry Davids  http://www.henry-davids/MAPS