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\bibitem{Schneider+Stoever2000} Schneider, W., \& St{\"o}ver, H. (2000). \textit{Guidelines for the operation and use of consumption rooms developed at the conference {\textquotedblleft}Consumption rooms as a professional service in addictions-health: international conference for the development of guidelines{\textquotedblright}, 18 -19 November 1999, Hannover}. Materialien. Oldenburg; M{\"u}nster: Carl von Ossietzky Universit{\"a}t Oldenburg, Arbeitsstelle Sucht- und Drogenforschung (SAUS); Akzept NRW.

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