@PHDTHESIS{Bartelt2004diss, author = {Andreas Bartelt}, title = {Elektronische Verhandlungen in verteilten E-Business-Systemen}, school = {Universität Hamburg, Fachbereich Informatik}, year = {2004}, type = {Dissertation}, address = {Vogt-Kölln-Str. 30, 22527 Hamburg, Germany}, month = {5} }