Nielsen, Erling 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;
Sutcliffe, P. R., & Nielsen, E. (1992). The ionospheric signature of Pi 2 pulsations observed by STARE. Journal Geophysical Research, 97, 10621-10636.