CCD spectrophotometry of CVs - IV. 3430-7850 Åatlas for 27 faint systemsU. Munari, T. Zwitter and A. BragagliaAstron. Astrophys. Suppl. Ser., 122 3 (1997) 495-505DOI: https://doi.org/10.1051/aas:1997337