1. Hasso Plattner Institute & Massachusetts Institute of Technology, Cambridge, MA, USA
2. Hasso Plattner Institute, Potsdam, Germany
3. University of Maryland, College Park & Cornell University, Ithaca, NY, USA
4. Massachusetts Institute of Technology, Cambridge, MA, USA
5. Cornell University, Ithaca, NY, USA
6. Hasso Plattner Institute, Potsadam, Germany