1. S. Chatrchyan et al. (CMS Collab.), J. Instrum. 3, S08004 (2008).
2. http://cms-results.web.cern.ch/cms-results/public-results/publications/HIN/.
3. https://cms-results.web.cern.ch/cms-results/public-results/preliminary-results/HIN/.
4. V. Khachatryan et al. (CMS Collab.), J. High Energy Phys. 1009, 091 (2010).
5. S. Chatrchyan et al. (CMS Collab.), Phys. Lett. B 718, 795 (2013).