K-band spectroscopy of pre-cataclysmic variablesC. Tappert, B. T. Gänsicke, L. Schmidtobreick, R. E. Mennickent and F. P. NavarreteA&A, 475 2 (2007) 575-583DOI: https://doi.org/10.1051/0004-6361:20077679