ラグナル・ロズブローク
McTurk, Rory (1991). Studies in Ragnars saga loðbrókar and Its Major Scandinavian Analogues. Medium Aevum Monographs. 15. Oxford. ISBN 0-907570-08-9
Strerath-Bolz, Ulrike (1993). Review of Rory McTurk, Studies in "Ragnars saga loðbrókar" and Its Major Scandinavian Analogues, Alvíssmál 2: 118–19.
Forte, Angelo, Richard Oram, and Frederik Pedersen (2005). Viking Empires. Cambridge University Press, ISBN 0-521-82992-5.
Margaret Schlauch (transl.