His Dichters over sterren, 1949.

LCCN 67-115253: Solar Spectrum Symposium (1963 : Rijksuniversiteit te Utrecht). The solar spectrum, 1965 (hdg.: Minnaert, Marcel Gilles Jozef, 1893- ; variant: M.G.J. Minnaert)

LC data base, 11-4-83 (hdg.: Minnaert, Marcel Gilles Jozef, 1893- ; usage: M.G.J. Minnaert; M. Minnaert)

His Light and color in the outdoors, c1993: t.p. (Marcel Minnaert) jkt. (d. 1970)

Dutch Wikipedia, viewed January 21, 2021 (Marcel Minnaert ; born in Bruges, 12 February 1893, died in Utrecht, 26 October 1970 ; biologist, astrophysicist, didacticist ; was director of the Utrecht Observatory) https://nl.wikipedia.org/wiki/Marcel_Minnaert

Catalogus Professorum Academiae Rheno-Traiectinae, Utrecht University, viewed January 21, 2021 (M.G.J. Minnaert ; Professor of Astronomy, 1937-1963) https://profs.library.uu.nl/index.php/profrec/getprofdata/1401/5/9/0

NTA, Dutch Name Authority File, viewed January 21, 2021 (Minnaert, M. ; variant: M. Minnart)