Spatially resolving the inhomogeneous structure of the dynamical atmosphere of Betelgeuse with VLTI/AMBERK. Ohnaka, K.-H. Hofmann, M. Benisty, A. Chelli, T. Driebe, F. Millour, R. Petrov, D. Schertl, Ph. Stee, F. Vakili and G. WeigeltA&A, 503 1 (2009) 183-195DOI: https://doi.org/10.1051/0004-6361/200912247