Multi-wavelength observations of Proxima CentauriB. Fuhrmeister, S. Lalitha, K. Poppenhaeger, N. Rudolf, C. Liefke, A. Reiners, J. H. M. M. Schmitt and J.-U. NessA&A, 534 (2011) A133DOI: https://doi.org/10.1051/0004-6361/201117447
