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Continue to ChatRETBUS: Xarxa ortogonal de bus a Barcelona https://www.ambientologosfera.es/2011/01/16/retbus-xarxa-ortogonal-de-bus-a-barcelona-2/
RETBUS: Xarxa ortogonal de bus a Barcelona https://www.ambientologosfera.es/2011/01/16/retbus-xarxa-ortogonal-de-bus-a-barcelona-2/