Observation and modelling of main sequence star chromospheres - VIII. High resolution observations of M and K dwarf chromospheric linesE. R. Houdebine, K. Junghans, M. C. Heanue and A. D. AndrewsA&A, 503 3 (2009) 929-944DOI: https://doi.org/10.1051/0004-6361/200811349