Lai, Shih-Ping; Girart, José M.; Crutcher, Richard M. (Kasım 2003). "Interferometric Mapping of Magnetic Fields in Star-forming Regions. III. Dust and CO Polarization in DR 21(OH)". The Astrophysical Journal. 598 (1). ss. 392-399. arXiv:astro-ph/0308051 $2. Bibcode:2003ApJ...598..392L. doi:10.1086/378769.
Kuhn, Michael A.; Getman, Konstantin V.; Feigelson, Eric D. (Mart 2015). "The Spatial Structure of Young Stellar Clusters. II. Total Young Stellar Populations". The Astrophysical Journal. 802 (1). 60. arXiv:1501.05300 $2. Bibcode:2015ApJ...802...60K. doi:10.1088/0004-637X/802/1/60.
Povich, Matthew S.; Kuhn, Michael A.; Getman, Konstantin V.; Busk, Heather A.; Feigelson, Eric D.; Broos, Patrick S.; Townsley, Leisa K.; King, Robert R.; Naylor, Tim (Aralık 2013). "The MYStIX Infrared-Excess Source Catalog". The Astrophysical Journal Supplement. 209 (2). 31. arXiv:1309.4497 $2. Bibcode:2013ApJS..209...31P. doi:10.1088/0067-0049/209/2/31.
Nadeau, Daniel; Beland, Stephane (Ocak 1988). "Observations of the line profiles of H2 in the DR 21 molecular cloud". The Astronomical Journal. Cilt 95. ss. 136-140. Bibcode:1988AJ.....95..136N. doi:10.1086/114621.
Lai, Shih-Ping; Girart, José M.; Crutcher, Richard M. (Kasım 2003). "Interferometric Mapping of Magnetic Fields in Star-forming Regions. III. Dust and CO Polarization in DR 21(OH)". The Astrophysical Journal. 598 (1). ss. 392-399. arXiv:astro-ph/0308051 $2. Bibcode:2003ApJ...598..392L. doi:10.1086/378769.
Kuhn, Michael A.; Getman, Konstantin V.; Feigelson, Eric D. (Mart 2015). "The Spatial Structure of Young Stellar Clusters. II. Total Young Stellar Populations". The Astrophysical Journal. 802 (1). 60. arXiv:1501.05300 $2. Bibcode:2015ApJ...802...60K. doi:10.1088/0004-637X/802/1/60.
Povich, Matthew S.; Kuhn, Michael A.; Getman, Konstantin V.; Busk, Heather A.; Feigelson, Eric D.; Broos, Patrick S.; Townsley, Leisa K.; King, Robert R.; Naylor, Tim (Aralık 2013). "The MYStIX Infrared-Excess Source Catalog". The Astrophysical Journal Supplement. 209 (2). 31. arXiv:1309.4497 $2. Bibcode:2013ApJS..209...31P. doi:10.1088/0067-0049/209/2/31.
Nadeau, Daniel; Beland, Stephane (Ocak 1988). "Observations of the line profiles of H2 in the DR 21 molecular cloud". The Astronomical Journal. Cilt 95. ss. 136-140. Bibcode:1988AJ.....95..136N. doi:10.1086/114621.
Wilson, T. L.; Mauersberger, R. (Kasım 1990). "The Internal Structure of Molecular Clouds. I. C18O, C34S and NH3 Maps of the DR 21/W 75 S Region". Astronomy and Astrophysics. 239 (1–2). ss. 305-318. Bibcode:1990A&A...239..305W.
Lai, Shih-Ping; Girart, José M.; Crutcher, Richard M. (Kasım 2003). "Interferometric Mapping of Magnetic Fields in Star-forming Regions. III. Dust and CO Polarization in DR 21(OH)". The Astrophysical Journal. 598 (1). ss. 392-399. arXiv:astro-ph/0308051 $2. Bibcode:2003ApJ...598..392L. doi:10.1086/378769.
Kuhn, Michael A.; Getman, Konstantin V.; Feigelson, Eric D. (Mart 2015). "The Spatial Structure of Young Stellar Clusters. II. Total Young Stellar Populations". The Astrophysical Journal. 802 (1). 60. arXiv:1501.05300 $2. Bibcode:2015ApJ...802...60K. doi:10.1088/0004-637X/802/1/60.
Povich, Matthew S.; Kuhn, Michael A.; Getman, Konstantin V.; Busk, Heather A.; Feigelson, Eric D.; Broos, Patrick S.; Townsley, Leisa K.; King, Robert R.; Naylor, Tim (Aralık 2013). "The MYStIX Infrared-Excess Source Catalog". The Astrophysical Journal Supplement. 209 (2). 31. arXiv:1309.4497 $2. Bibcode:2013ApJS..209...31P. doi:10.1088/0067-0049/209/2/31.