The GTC exoplanet transit spectroscopy survey - VI. Detection of sodium in WASP-52b’s cloudy atmosphereG. Chen, E. Pallé, L. Nortmann, F. Murgas, H. Parviainen and G. NowakA&A, 600 (2017) L11DOI: https://doi.org/10.1051/0004-6361/201730736
