Phase Dynamics in Arrays of Coupled Vortex Spin-Torque Nano-Oscillators Olga Katkova, Ansar Safin, Nikolay Udalov and Mikhail Kapranov EPJ Web Conf., 185 (2018) 03010 Published online: 04 July 2018 DOI: 10.1051/epjconf/201818503010