VizieR online Data Catalogue associated with article published in journal Astronomical Journal (AAS) with title 'The Origin of a Distributed Stellar Population in the Star-forming Region W4.' (bibcode: 2020ApJ...899..121L)
Lim, B. (Creator), Hong, J. (Creator), Yun, H. (Creator), Hwang, N. (Creator), Kim, J. S. (Creator), Lee, J. (Creator), Park, B. (Creator), Park, S. (Creator), Hwang, N. (Creator) (2021). 127 early type and pre-main-sequence stars in W4. Centre de Donnees Strasbourg (CDS). 10.26093/cds/vizier.18990121