Collaboration, Planck, P. A. R. Ade, N. Aghanim, M. Ashdown, J. Aumont, C. Baccigalupi, A. J. Banday, et al. (2016) 2016. “Planck Intermediate Results. XLI. A Map of Lensing-Induced B-Modes”. \aap 596: A102. doi:10.1051/0004-6361/201527932.