Constant’s personal library was documented in 2019-2020. The project was supported by Stichting Dioraphte, Gravin van Bylandt Stichting and Fundatie Van den Santheuvel, Sobbe.

Year Title Author(s) CID
Amstelveen Museum voor Moderne Kunst Piet van den Heuvel 5602
Jong Holland F. van Burkom 3379