A study of the galactic cluster Messier 67, base mainly upon the photographic magnitudes and the effective wavelengths of 1153 stars. - Vanderlinden, Henri Louis, 1892-; Vanderlinden, Henri Louis, 1892- (Antwerpen, Standaard-Boekhandel, 1945)
Summary in Flemish : p. 5-6.
"General catalogue": p. 40-78.
Bibliographical footnotes.
Keywords: Stars -- Clusters; Stars -- Magnitudes; Stars -- Photographic measurements