MLA

Helber, Stefan, et al. Operations Research Proceedings 2012. Springer International Publishing, 2014.

APA

Helber, S., Breitner, M., Graf von der Schulenburg, J., Rösch, D., Schön, C., Sibbertsen, P., Steinbach, M., Weber, S., & Wolter, A. (2014). Operations Research Proceedings 2012. Springer International Publishing.

Chicago

Helber, Stefan, Michael Breitner, Johann-Matthias Graf von der Schulenburg, Daniel Rösch, Cornelia Schön, Philipp Sibbertsen, Marc Steinbach, Stefan Weber, and Anja Wolter. Operations Research Proceedings 2012. : Springer International Publishing, 2014.