Marsch, Eckart MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society; Department Sun and Heliosphere, Max Planck Institute for Solar System Research, Max Planck Society;
Marsch, E. (2005). The relativistic energy spectrum of hydrogen. Annalen der Physik, 14(5), 324-343. doi:10.1002/andp.200410137.