78/ 291 Hoek, E. a.o. Theo van Doesburg. Oeuvre catalogus. Utr./ Otterlo, Centraal Mus./ Kröller-Müller Mus., 2000, 840p., num. (col.) ills., orig. cl., square large 8vo. Duyn, E. van and Witteveen, F. Marinus Boezem. Bussum, Thoth, 1999, 546p., richly illustrated, typography by I. BOOM, orig. boards. - AND 1 other: I. SCHULZ, Kurt Schwitters en de avant-garde (Rott., 2006, ills., orig. pict. boards, 4to).