Williams, George2012-05-282012-05-282007http://hdl.handle.net/10437/2628Revista Lusófona de Ciências Aeronáuticasapplication/pdfengopenAccessTRANSPORTES AÉREOSCOMPANHIAS AÉREASINDÚSTRIA AÉREAVOOS CHARTERTARIFAS LOW COSTAIR TRANSPORTAIRLINE INDUSTRYCHARTER FLIGHTSLOW COST FAREAIRLINESCost comparison of network, low-cost and charter airlinesarticle