PT Unknown AU Alvarez-Muniz, J Bohacova, M Cataldi, G Coluccia, MR Creti, P de Mitri, I di Giulio, C Engel, R san Luis, PF Iarlori, M Martello, D Monasor, M Perrone, L Petrera, S Privitera, P Riegel, M Rizi, V Rodriguez-Fernandez, G Salamida, F Salina, G Settimo, M Smida, R Verzi, V Werner, F Williams, C TI The AMY experiment to measure ghz radiation for ultra-high energy cosmic ray detection PY 2012 LA english ER