The classification of drawings in the so-called Ruben's "Cantoor"

by Svenningsen, Jesper
Published in Master drawings (2013)

Rubens's lost 'pocketbook': some new thoughts

by Jaffé, David
Published in The Burlington magazine (2010)

Rubens's drawings after Julius Held

by Logan, Anne-Marie
Published in Oud-Holland (2007)

Über einige Handzeichnungen von Rubens in der Albertina

by Haberditzl, Franz Martin
Published in Die graphischen Künste (1912)