1. J. Bruyn, ‚Een onderzoek naar 17de-eeuwse schilderijformaten, voornamelijk in Noord-Nederland‘, O.H. 93 (1979), pp. 96–115, esp. 106–107, 108–109 and 111.
2. Exhib. cat. Art in the making, 1988/89, pp. 31 and 96; 2006, pp. 138–145, esp. 140 and p. 224.
3. Van de Wetering 1997/2009, Chapter VIII, esp. pp. 203–211.
4. Exhib. cat. Art in the making, 1988/89, p. 98; 2006, p. 141.
5. Exhib. cat. Art in the making, 1988/89, p. 100; 2006, p. 142, which includes other mixtures found in the paintings and reproductions of cross-sections.