Multiple emission line components in detached post-common-envelope binaries C. Tappert, B. T. Gänsicke, A. Rebassa-Mansergas, L. Schmidtobreick and M. R. Schreiber A&A, 531 (2011) A113 Published online: 23 June 2011 DOI: 10.1051/0004-6361/201116833