VizieR online Data Catalogue associated with article published in journal Astronomical Journal (AAS) with title 'The Sejong Open cluster Survey (SOS). IV. The young open clusters NGC 1624 and NGC 1931.' (bibcode: 2015AJ....149..127L)
Lim, B. (Creator), Sung, H. (Creator), Bessell, M. S. (Creator), Kim, J. S. (Creator), Hur, H. (Creator), Park, B. (Creator), Bessell, M. S. (Creator) (2015). The SOS project. IV. NGC 1624 and NGC 1931. Centre de Donnees Strasbourg (CDS). 10.26093/cds/vizier.51490127