Wilhelm, Klaus 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;
Wilhelm, K., & Dwivedi, B. N. (2014). Secular perihelion advances of the inner planets and asteroid Icarus. New Astron., 31, 51-55. doi:10.1016/j.newast.2014.02.007.