First detection of extensive air showers with the EEE experiment
Abbrescia M. et al. (The EEE Collaboration), First detection of extensive air showers with the EEE experiment, Nuovo Cimento della Societa Italiana di Fisica B-Basic Topics in Physics (2010) 125, 2, pages 243-254, doi:10.1393/ncb/i2010-10852-0