Shapiro step at nonequilibrium conditions Yu. M. Shukrinov, M. Nashaat, K. V. Kulikov, R. Dawood, H. El Samman and Th. M. El Sherbini EPL, 115 2 (2016) 20003 Published online: 16 August 2016 DOI: 10.1209/0295-5075/115/20003