1. The Large Hadron Collider, CERN https://home.cern/science/accelerators/large-hadron-collider
2. Juan Rojo et al., J. Phys. G: Nucl. Part. Phys. 42, 103103 (2015)
3. Jon Butterworth et al., J. Phys. G: Nucl. Part. Phys. 43, 023001 (2016)
4. BCDMS Coll., A.C. Benvenuti et al., Phys. Lett. B 223, 485 (1989)
5. L.W. Whitlow et al., Phys. Lett. B 282, 475 (1992)