Monitoring evolved stars for binarity with the hermes spectrographN. Gorlova, H. Van Winckel, J. Vos, R.H. Østensen, A. Jorissen, S. Van Eck and N. IkonnikovaEAS Publications Series, 64 (2013) 163-170DOI: https://doi.org/10.1051/eas/1364023