Fleuren, H., Hertog, D., & Kort, P. (2005). Operations research proceedings 2004: Selected papers of the annual international conference of the German operations research society (GOR). jointly organized with the Netherlands Society for Operations Research (NGB) Tilburg, September 1-3, 2004. Springer Berlin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFleuren, Hein, Dick Hertog, और Peter Kort. Operations Research Proceedings 2004: Selected Papers of the Annual International Conference of the German Operations Research Society (GOR). Jointly Organized with the Netherlands Society for Operations Research (NGB) Tilburg, September 1-3, 2004. Berlin, Heidelberg: Springer Berlin, 2005.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFleuren, Hein, et al. Operations Research Proceedings 2004: Selected Papers of the Annual International Conference of the German Operations Research Society (GOR). Jointly Organized with the Netherlands Society for Operations Research (NGB) Tilburg, September 1-3, 2004. Springer Berlin, 2005.