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                BAG, Urteil v. 18.1.2012, 10 AZR 612/10; zur Definition des Mischcharakters s. BAG, Urteil v. 23.3.2017, 6 AZR 264/16, Rzn. 18-23.  | 
         
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                § 39b Abs. 3 Satz 9 und 10 EStG wurde durch das Wachstumschancengesetz gestrichen.  |