Determination of geometry of heavy ion collisions with forward hadron calorimeter (FHCal) at MPD/NICAAlexander Ivashkin, Dmitry Finogeev, Marina Golubeva, Fedor Guber, Alexander Izvestnyy, Sergey Morozov and Alexander StrizhakEPJ Web Conf., 204 (2019) 07002DOI: https://doi.org/10.1051/epjconf/201920407002