Direct multi-wavelength limb-darkening measurements of three late-type giants with the Navy Prototype Optical InterferometerM. Wittkowski, C. A. Hummel, K. J. Johnston, D. Mozurkewich, A. R. Hajian and N. M. WhiteA&A, 377 3 (2001) 981-993DOI: https://doi.org/10.1051/0004-6361:20011124
