@inproceedings{Tkachev:20129M, author = "Tkachev, Igor", title = "{Cosmic Rays}", doi = "10.22323/1.134.0013", booktitle = "Proceedings of XXIst International Europhysics Conference on High Energy Physics {\textemdash} PoS(EPS-HEP2011)", year = 2012, volume = "134", pages = "013" }