European stocks mixed at open; London drops 0.15%
Europe's main stock markets were mixed at the start of trading on Monday, with London's FTSE 100 index of top companies down 0.15 percent to 6,337.63 points.
Frankfurt's DAX 30 fell 0.14 percent to 7,822.54 points, while in Paris the CAC 40 increased by 0.12 percent to 3,778.06.
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