T. Weise, S. Bleul, M. Kirchhoff, и K. Geihs. Proceedings of IEEE Joint Conference on E-Commerce Technology (10th CEC) and Enterprise Computing, E-Commerce and E-Services (5th EEE) (CEC/EEE'08), стр. 355--358. IEEE Computer Society: Piscataway, NJ, USA, (2008)
S. Bleul, T. Weise, и K. Geihs. Proceedings of IEEE Joint Conference on E-Commerce Technology (9th CEC) and Enterprise Computing, E-Commerce and E-Services (4th EEE) (CEC/EEE'07), стр. 517--520. IEEE Computer Society: Piscataway, NJ, USA, (2007)2nd place in 2007 WSC..