International Conference on Management Science and Engineering Management Karlsruhe, Germany, SpringerLink (Online service), Xu, J., Nickel, S., Machado, V. C., & Hajiyev, A. (2015). Proceedings of the Ninth International Conference on Management Science and Engineering Management. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-662-47241-5

International Conference on Management Science and Engineering Management Karlsruhe, Germany, SpringerLink (Online service), Jiuping Xu, Stefan Nickel, Virgilio Cruz Machado, and Asaf Hajiyev. Proceedings of the Ninth International Conference on Management Science and Engineering Management. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. https://doi.org/10.1007/978-3-662-47241-5.

International Conference on Management Science and Engineering Management Karlsruhe, Germany, et al. Proceedings of the Ninth International Conference on Management Science and Engineering Management. Springer Berlin Heidelberg, 2015. https://doi.org/10.1007/978-3-662-47241-5.