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Namir E. Kassim, Kurt W. Weiler, William C. Erickson et T. L. Wilson, « Improved Estimates of Galactic H II Region Emission Measures and Filling Factors: Low-Frequency VLA Observations near Sharpless 53 », The Astrophysical Journal, vol. 338, , p. 152 (ISSN0004-637X, DOI10.1086/167189, lire en ligne, consulté le )
M. Szymczak, G. Hrynek et A. J. Kus, « A survey of the 6.7 GHz methanol maser emission from IRAS sources. I. Data », Astronomy and Astrophysics Supplement Series, vol. 143, , p. 269–301 (ISSN0365-0138, DOI10.1051/aas:2000334, lire en ligne, consulté le )
Matthew B. Callaway, Blair D. Savage, Robert A. Benjamin et L. Matthew Haffner, « Observational Evidence of Supershell Blowout in GS 018-04+44: The Scutum Supershell », The Astrophysical Journal, vol. 532, , p. 943–969 (ISSN0004-637X, DOI10.1086/308601, lire en ligne, consulté le )
Namir E. Kassim, Kurt W. Weiler, William C. Erickson et T. L. Wilson, « Improved Estimates of Galactic H II Region Emission Measures and Filling Factors: Low-Frequency VLA Observations near Sharpless 53 », The Astrophysical Journal, vol. 338, , p. 152 (ISSN0004-637X, DOI10.1086/167189, lire en ligne, consulté le )
George Helou et D. W. Walker, « Infrared Astronomical Satellite (IRAS) Catalogs and Atlases.Volume 7: The Small Scale Structure Catalog. », Infrared astronomical satellite (IRAS) catalogs and atlases. Volume 7, vol. 7, , p. 1–265 (lire en ligne, consulté le )
M. Szymczak, G. Hrynek et A. J. Kus, « A survey of the 6.7 GHz methanol maser emission from IRAS sources. I. Data », Astronomy and Astrophysics Supplement Series, vol. 143, , p. 269–301 (ISSN0365-0138, DOI10.1051/aas:2000334, lire en ligne, consulté le )
Matthew B. Callaway, Blair D. Savage, Robert A. Benjamin et L. Matthew Haffner, « Observational Evidence of Supershell Blowout in GS 018-04+44: The Scutum Supershell », The Astrophysical Journal, vol. 532, , p. 943–969 (ISSN0004-637X, DOI10.1086/308601, lire en ligne, consulté le )
Namir E. Kassim, Kurt W. Weiler, William C. Erickson et T. L. Wilson, « Improved Estimates of Galactic H II Region Emission Measures and Filling Factors: Low-Frequency VLA Observations near Sharpless 53 », The Astrophysical Journal, vol. 338, , p. 152 (ISSN0004-637X, DOI10.1086/167189, lire en ligne, consulté le )
M. Szymczak, G. Hrynek et A. J. Kus, « A survey of the 6.7 GHz methanol maser emission from IRAS sources. I. Data », Astronomy and Astrophysics Supplement Series, vol. 143, , p. 269–301 (ISSN0365-0138, DOI10.1051/aas:2000334, lire en ligne, consulté le )