@inproceedings{Mbarek:2019Ie, author = "Mbarek, Rostom and Caprioli, Damiano", title = "{Espresso Acceleration of Ultra-High-Energy Cosmic Rays up to the Hillas Limit in Relativistic MHD Jets}", doi = "10.22323/1.358.0348", booktitle = "Proceedings of 36th International Cosmic Ray Conference {\textemdash} PoS(ICRC2019)", year = 2019, volume = "358", pages = "348" }