Impact of Mobility and Migration in the Roman Empire: Proceedings of the Twelfth Workshop of the International Network Impact of Empire (Rome, June 17–19, 2015) - Lo Cascio, Elio; Tacoma, Laurens Ernst; Groen-Vallinga, Miriam J.; Laurens Ernst Tacoma; Laurens Ernst Tacoma (Volume Editors); Tacoma, Laurens Ernst (Brill, 2017)