Cardon (1996)-
Cardon, Bert : Manuscripts of the Speculum Humanae Salvationis in the southern Netherlands (ca. 1410 – ca. 1470). A contribution to the study of the 15th century book illumination and of the function and meaning of historical symbolism (Corpus of illuminated manuscripts 9; Low countries series 6). Leuven 1996, S. 44–72, 131, 166, 177.