Study of molecular layers in the atmosphere of the supergiant star μ Cep by interferometry in the K bandG. Perrin, S. T. Ridgway, T. Verhoelst, P. A. Schuller, V. Coudé du Foresto, W. A. Traub, R. Millan-Gabet and M. G. LacasseA&A, 436 1 (2005) 317-324DOI: https://doi.org/10.1051/0004-6361:20042313