Identity formation and diversity in the early medieval Baltic and beyond : communicators and communication : ["communicators and communication across cultural boundaries in the Baltic and beyond ca. 400-1700 AD" conference in Lund 2007] - Callmer, Johan (1945-....); Callmer, Johan (1945-....); Gustin, Ingrid; Gustin, Ingrid; Roslund, Mats (1957-....); Roslund, Mats (1957-....) (Brill, 2017)