Wilhelm, K. 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;
Betta, R., Hansteen, V., Carlsson, M., & Wilhelm, K. (1997). Intensity and velocity variations in transition region lines observed with SUMER. In A. Wilson (Ed.), Proc. Fifth SOHO Workshop ``The Corona and Solar Wind Near Minimum Activity'', Oslo (pp. 205-209). Noordwijk: ESA Publ. Div.