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Fig. 2.

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V/I spectropolarimetry of the continuum (empty symbols joined by solid lines), and new DIPol-UF BBCP (solid circles) of the stars WD 1748+708 (top panel) and WD 1900+705 (bottom panel). Horizontal error bars represent the FWHM of the broad-band filters. The polarisation spectra used for comparison are described in the text.
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