Danmarks historie /
Skovgaard-Petersen, Inge.
Christensen, Aksel Erhardt,1906-
Paludan, Helge.
Copenhagen : Gyldendal,
1977-
Bibliography: v. 1, p. 536-579
bd. 1. Skovgaard-Petersen, I., Christensen, A. E., Paludan, H. Tiden indtil 1340