Schwenn, R. Department Sun and Heliosphere, Max Planck Institute for Solar System Research, Max Planck Society; MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society;
Denskat, K. U., Neubauer, F. M., & Schwenn, R. (1981). Properties of ``Alfvenic'' fluctuations near the sun: Helios-1 and Helios-2. In H. Rosenbauer (Ed.), Solar Wind Four, Proceedings of the Conference held in Burghausen, August 28 - September 1, 1978 (pp. 392-397). Katlenburg-Lindau: Max-Planck-Institut für Aeronomie.