»03 - Suisse sud-ouest«. Swiss National Map 1:200 000 - Switzerland on four sheets. Federal Office of Topography, swisstopo, Swiss Federal Department of Defence, Civil Protection and Sport. 2009. Arhivirano iz prvotnega spletišča dne 11. aprila 2014. Pridobljeno 12. novembra 2013.
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»03 - Suisse sud-ouest«. Swiss National Map 1:200 000 - Switzerland on four sheets. Federal Office of Topography, swisstopo, Swiss Federal Department of Defence, Civil Protection and Sport. 2009. Arhivirano iz prvotnega spletišča dne 11. aprila 2014. Pridobljeno 12. novembra 2013.