@inproceedings{Mikhailov:20166H, author = "Mikhailov, Vladimir and Mocchiutti, Emiliano", title = "{Time Dependence of the Cosmic Rays Positron Fraction }", doi = "10.22323/1.236.0383", booktitle = "Proceedings of The 34th International Cosmic Ray Conference {\textemdash} PoS(ICRC2015)", year = 2016, volume = "236", pages = "383" }