Balog, Z.; Kenyon, S. J.; Lada, E. A.; Barsony, M.; et al. (2004). "A Near-Infrared (JHK) Survey of the Vicinity of the H II Region NGC 7538: Evidence for a Young Embedded Cluster". The Astronomical Journal. 128 (6): 2942–2953. arXiv:astro-ph/0409115. Bibcode:2004AJ....128.2942B. doi:10.1086/425548. S2CID9772547.
Balog, Z.; Kenyon, S. J.; Lada, E. A.; Barsony, M.; et al. (2004). "A Near-Infrared (JHK) Survey of the Vicinity of the H II Region NGC 7538: Evidence for a Young Embedded Cluster". The Astronomical Journal. 128 (6): 2942–2953. arXiv:astro-ph/0409115. Bibcode:2004AJ....128.2942B. doi:10.1086/425548. S2CID9772547.
Balog, Z.; Kenyon, S. J.; Lada, E. A.; Barsony, M.; et al. (2004). "A Near-Infrared (JHK) Survey of the Vicinity of the H II Region NGC 7538: Evidence for a Young Embedded Cluster". The Astronomical Journal. 128 (6): 2942–2953. arXiv:astro-ph/0409115. Bibcode:2004AJ....128.2942B. doi:10.1086/425548. S2CID9772547.
Balog, Z.; Kenyon, S. J.; Lada, E. A.; Barsony, M.; et al. (2004). "A Near-Infrared (JHK) Survey of the Vicinity of the H II Region NGC 7538: Evidence for a Young Embedded Cluster". The Astronomical Journal. 128 (6): 2942–2953. arXiv:astro-ph/0409115. Bibcode:2004AJ....128.2942B. doi:10.1086/425548. S2CID9772547.