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\bibitem{Kuebler+Hausser1995} K{\"u}bler, D., \& Hausser, D. (1995). \textit{Consommateurs d{\textquoteright}h{\'e}ro{\"\i}ne et/ou de coca{\"\i}ne hors traitement m{\'e}dical : {\'e}tude exploratoire aupr{\`e}s d{\textquoteright}une population cach{\'e}e}. Lausanne: Ecole polytechnique f{\'e}d{\'e}rale de Lausanne (EPFL), D{\'e}partement d{\textquoteright}architecture, Institut de recherche sur l{\textquoteright}environnement construit (IREC).

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