The distance and size of the red hypergiant NML Cygni from VLBA and VLA astrometryDOI: info:10.1051/0004-6361/201219587v. 544EDP Sciences42
Zhang, B., Reid, M. J., Menten, K. M., Zheng, X. W., and Brunthaler, A. 2012. "The distance and size of the red hypergiant NML Cygni from VLBA and VLA astrometry." Astronomy and Astrophysics, 544 42. https://doi.org/10.1051/0004-6361/201219587.