PT Journal AU Stasielak, J Baur, S Bertaina, M Blümer, J Chiavassa, A Engel, R Haungs, A Huege, T Kampert, KH Klages, H Kleifges, M Krömer, O Ludwig, M Mathys, S Neunteufel, P Pekala, J Rautenberg, J Riegel, M Roth, M Salamida, F Schieler, H Smida, R Unger, M Weber, M Werner, F Wilczynski, H Wochele, J TI Radar reflection off extensive air showers SO EPJ Web of Conferences PY 2013 BP 08013/1 EP 7 VL 53 DI 10.1051/epjconf/20135308013 LA english ER