Bibliografia Normanno-Sveva
Dujčev Ivan
Les Normands à Byzance et dans la péninsule des Balkans
storia
Balcani, Bisanzio, conquista, espansione, greci, slavi
Varangian Problems. Scando-slavica, Supplementum I, Copenhagen-Munksgaard 1970, pp. 201-08
Report on the first international symposium on the theme: "The Eastern Connections of the Nordic Peoples in the Vicking Period and Early Middle Ages", Moesagaard 7th-11th october 1968