Equation of state in (2+1)-flavor QCD at physical point with improved Wilson fermion action using gradient flowKazuyuki Kanaya, Shinji Ejiri, Ryo Iwami, Masakiyo Kitazawa, Hiroshi Suzuki, Yusuke Taniguchi and Takashi UmedaEPJ Web Conf., 175 (2018) 07023DOI: https://doi.org/10.1051/epjconf/201817507023