Biermann, P. Max Planck Institute for Radio Astronomy, Max Planck Society;
Abdellaoui, G., Abe, S., Adams Jr., J., Ahriche, A., Allard, D., Allen, L., et al. (2018). First observations of speed of light tracks by a fluorescence detector looking down on the atmosphere. Journal of Instrumentation, 13, P05023. doi:10.1088/1748-0221/13/05/P05023.