Cosmic rays studied with a hybrid high school detector arrayA. Nigl, C. Timmermans, P. Schellart, J. Kuijpers, H. Falcke, A. Horneffer, C. M. de Vos, Y. Koopman, H. J. Pepping and G. SchoonderbeekEurophysics News, 38 5 (2007) 25-28DOI: https://doi.org/10.1051/epn:2007021