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\bibitem{Haug_etal2012} Haug, S., Venzin, V., \& Meyer, C. (2012). F{\"o}rderung des Rauchstopps an Berufsfachschulen via SMS. \textit{SuchtMagazin}, \textit{38}(3\&4; 08/2012), 38--42.

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