Restoring canonical partition functions from imaginary chemical potential V.G. Bornyakov, D. Boyda, V. Goy, A. Molochkov, A. Nakamura, A. Nikolaev and V.I. Zakharov EPJ Web Conf., 175 (2018) 07027 Published online: 26 March 2018 DOI: 10.1051/epjconf/201817507027