Testing general relativity by means of ring lasers - Ring lasers and relativity Angelo Tartaglia, Angela Di Virgilio, Jacopo Belfi, Nicolò Beverini and Matteo Luca Ruggiero Eur. Phys. J. Plus, 132 2 (2017) 73 Published online: 15 February 2017 DOI: 10.1140/epjp/i2017-11372-5