Roll, Reinhard MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society; Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society;
Roll, R., & Witte, L. (2016). ROSETTA lander Philae: Touch-down reconstruction. Planetary and Space Science, 125, 12-19. doi:10.1016/j.pss.2016.02.005.