Ade, P., Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., …Zonca, A. (2016). Planck 2015 results. XIII. Cosmological parameters. Astronomy and Astrophysics, 594, Article A13. https://doi.org/10.1051/0004-6361/201525830