^Fryde, et al. Handbook of British Chronology p. 221
References
Fryde, E. B.; Greenway, D. E.; Porter, S.; Roy, I. (1996). Handbook of British Chronology (Third revised ed.). Cambridge, UK: Cambridge University Press. ISBN 0-521-56350-X.
Kelly, S. E. (1998). Charters of Selsey. Anglo-Saxon Charters VI. Oxford University Press. ISBN 0-19-726175-2.
