Underground nuclear astrophysics: Why and how A. Best, A. Caciolli, Zs. Fülöp, Gy. Gyürky, M. Laubenstein, E. Napolitani, V. Rigato, V. Roca and T. Szücs Eur. Phys. J. A, 52 4 (2016) 72 Published online: 05 April 2016 DOI: 10.1140/epja/i2016-16072-7