Brussel, Paleis der Academiën, 1956, in-8°, 26 x 18 cm, 494 pp, b/w ills., bibliography, index, sewn, orig. wrappers. Published as treatise of the ''Koninklijke Vlaamse Academie'' N° 10, Klasse der Schone Kunsten. Text in Dutch. (Freitag N° 4661).
2. Antwerpen, In-4°, 133 pp, b/w ills. sewn, orig. stiff wrapp.
(Stuttgart), Klett-Cotta, (1982), large in-4°, 367 pp, publisher's cloth, dust wrapper, 252 b/w + col. ills, printing errors on 7 index pages (offsetting of wrong texts on original print, hindering the readability, but not making it impossible).
"10. Brussels, Arcade, 1974, in-8°, publisher's cloth with d.w., 4 vols in 2 slip-cases, 969 pp with 636 ill.; monograph No. V of the Nationaal Centrum voor de Plastische Kunsten van de XVIe en XVIIe eeuw. (Catalogue raisonné of his drawings)."