M. R. Atayan, Bai Yuting, E. A. De Wolf, A. M. F. Endler, Fu Jinghua, H. Gulkanyan, R. Hakobyan, W. Kittel, Liu Lianshou, Li Zhiming, Z. V. Metreveli, L. N. Smirnova, L. A. Tikhonova, A. G. Tomaradze, Wu Yuanfang, and S. A. Zotkin (EHS/NA22 Collaboration)
Phys. Rev. D 71, 012002 (2005) – Published 24 January 2005