Bijdrage tot de bronnenstudie der Primera crónica general - Jonxis-Herkemans, Wilhelmina Louisa (Rotterdam : Van Waesberge, Hoogewerff & Richards, 1947)
Proefschrift--Groningen.
Summary in English.
"Stellingen": [2] leaves inserted.
"Errata" slip inserted.
Bibliography: p. 64-65.
Keywords: Alfonso -- X, -- King of Castile and Leon, -- 1221-1284