Wittkowski, MBoboltz, D. A.Karovicova, IOhnaka, KScholz, Michaelvan Wyk, F WWhitelock, Patricia AWood, Peter RZijlstra, Albert AIreland, Michael2015-12-100004-6361http://hdl.handle.net/1885/51968Aims. We investigate the structure and shape of the photospheric and molecular layers of the atmospheres of four Mira variables. Methods. We obtained near-infrared K-band spectro-interferometric observations of the Mira variables R Cnc, X Hya, W Vel, andAuthor/s retain copyrightKeywords: Stars: atmosphere; Stars: fundamental parameters; Stars: mass-loss; Stars:AGB and post AGB; Techniques: interferometric; Techniques: photometric; Amber; Dynamic models; Forecasting; Fuzzy clustering; Interferometry; Photometry; Stars; Telescopes; Water va Stars: AGB and post-AGB; Stars: atmospheres; Stars: fundamental parameters; Stars: mass-loss; Techniques: interferometric; Techniques: photometric201110.1051/0004-6361/2011174112016-02-24