Integral field spectroscopy of the ultraluminous X-ray source Holmberg II X-1
I. Lehmann, T. Becker, S. Fabrika, M. Roth, T. Miyaji, V. Afanasiev, O. Sholukhova, S. F. Sánchez, J. Greiner, G. Hasinger, E. Costantini, A. Surkov and A. Burenkov
A&A, 431 3 (2005) 847-860
DOI: https://doi.org/10.1051/0004-6361:20035827