The Bar and Spiral Structure Legacy (BeSSeL) survey: Mapping the Milky Way with VLBI astrometryDOI: info:10.1002/asna.201111560v. 332461
Brunthaler, A., Reid, M. J., Menten, Karl M., Zheng, X. W., Bartkiewicz, A., Choi, Y. K., Dame, T., Hachisuka, K., Immer, K., Moellenbrock, G., Moscadelli, L., Rygl, K. L. J., Sanna, A., Sato, M., Wu, Y., Xu, Y., and Zhang, B. 2011. "The Bar and Spiral Structure Legacy (BeSSeL) survey: Mapping the Milky Way with VLBI astrometry." Astronomische Nachrichten, 332 461. https://doi.org/10.1002/asna.201111560.