%0 Journal Article %T The Empirical Validity of the Common European Framework of Reference Scales. An Exemplary Study for the Vocabulary and Fluency Scales in a Language Testing Context %A Katrin, Wisniewski, %J Applied Linguistics %V 39 %N 6 %@ 0142-6001 %D 2018-12-01 %I Oxford University Press %~ DeepDyve