Grundbegriffe der neuen ... 1966.

Theo van Doesburg, 1883-1931, 1983: portada (Theo van Doesburg) cover p. 4 (Christian Emil Marie Küpper)

Het andere gezicht van I.K. Bonset, c1983: portada (Aldo Camini)

Theo van Doesburg, c2000: página 178 (b. Christian Emil Marie Küpper, 08-30-1883, in Utrecht; in early youth took the name Theo van Doesburg, after his stepfather) página 183 (d. 03-07-1931 in Davos [Switzerland])

Union List of Artists Names Online, sitio web, 8 abril 2015: (Doesburg, Theo van (Dutch painter, writer, and author, 1883-1931). Names: Doesburg, Theo van; Theo van Doesburg; Christian Emil Marie Kupper; Küpper, Christian Emil Marie; Küppers, Christiaan Emil Marie; Christiaan Emil Maria Kupper; Christian Emil Marie Küpper; Kupper, Christian Emil Marie; Van Doesburg, Theo; Bonset, I. K.; Camini, Aldo; Doesburg, Theo Van; Theo Van Doesburg; Doesburg, Christiaan Emil Maria Kupper; Küpper, C. E. M.) http://www.getty.edu/vow/ULANFullDisplay?find=Doesburg%2C+Theo+van&role=&nation=&prev_page=1&subjectid=500007926

RKD artists, sitio web, 8 abril 2015: (Theo van Doesburg, male / Netherlandish architects, sculptor, collagist, glass painter, interior decorator, art theorist, furniture designer, monumental artist, wall painter, painter, etcher, lithographer, draftsman, poet, art critic, publicist, ceramicist, photographer, manufacturer of woodcuts. Name variations: Küpper, Christian Emil Marie; Bonset, I. K.; Camini, Aldo. Born: Utrecht, 1883-08-30; Deceased: Davos, 1931-03-07) https://rkd.nl/explore/artists/23481