U. Ganse, F. Spanier, and R. Vainio. Proceedings of the 32nd International Cosmic Ray Conference, Beijing, China 2011, volume 10 of International Cosmic Ray Conference, page 106-109. (2011)
U. Ganse, F. Spanier, and R. Vainio. Proceedings of the 32nd International Cosmic Ray Conference, Beijing, China 2011, volume 10 of International Cosmic Ray Conference, page 106-109. (2011)