J. Ehrlich, M. Roick, L. Schulze, J. Zwiener, T. Papenbrock, and F. Naumann. Proceedings of the 19th International Conference on Extending Database Technology, EDBT 2016, Bordeaux, France, March 15-16, 2016, Bordeaux, France, March 15-16, 2016., page 305--316. (2016)