Mueller, Hansruedi. Atypical working hours and their impacts on leisure - an unofficial Swiss time use study / Hansruedi Mueller, Ursula Wyss. - 2007. // Tourism review = Revue de tourisme = Zeitschrift für Fremdenverkehr. Vol. 62 (2007), No. 1
Mueller, Hansruedi. Infrastructure repercussions of mega sports events: the relevance of demarcation procedures for impact calculations, evaluated using the case of UEFA Euro 2008 / Hansruedi Mueller, Christian Moesch. - 2010. // Tourism review = Revue de tourisme = Zeitschrift für Fremdenverkehr. Vol. 65 (2010), No. 1
Tourism and ecology : connections and areas of activity / T. Hitrec. - 2005. // Tourism : an international interdisciplinary journal. Vol. 53 (2005), No. 1