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A gravity model is used to analyse the main factors affecting the international demand for Douro river cruising over the period from 2007 to 2014. The numbers of international passengers are positively determined by income per capita of origin country and by the population size of the leading countries of outbound tourism to Portugal. <\/jats:p>","DOI":"10.1177\/1354816617692478","type":"journal-article","created":{"date-parts":[[2017,2,10]],"date-time":"2017-02-10T08:34:14Z","timestamp":1486715654000},"page":"1679-1686","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":10,"title":["International demand for the Douro (Portugal) river cruises"],"prefix":"10.1177","volume":"23","author":[{"given":"Sofia","family":"Gouveia","sequence":"first","affiliation":[{"name":"University of Tr\u00e1s-os-Montes and Alto Douro (UTAD), Portugal"}]},{"given":"Jo\u00e3o","family":"Rebelo","sequence":"additional","affiliation":[{"name":"University of Tr\u00e1s-os-Montes and Alto Douro (UTAD), Portugal"}]},{"given":"Lina","family":"Louren\u00e7o-Gomes","sequence":"additional","affiliation":[{"name":"University of Tr\u00e1s-os-Montes and Alto Douro (UTAD), Portugal"}]},{"given":"Alexandre","family":"Guedes","sequence":"additional","affiliation":[{"name":"University of Tr\u00e1s-os-Montes and Alto Douro (UTAD), Portugal"}]}],"member":"179","published-online":{"date-parts":[[2017,2,10]]},"reference":[{"key":"bibr1-1354816617692478","volume-title":"Douro River Cruise Passengers by Year and Emitting Country (From 2007 to 2014)","author":"Administra\u00e7\u00e3o dos Portos do Douro, Leix\u00f5es e Viana do Castelo SA (APDL","year":"2016"},{"key":"bibr2-1354816617692478","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-1765(03)00007-7"},{"key":"bibr3-1354816617692478","doi-asserted-by":"publisher","DOI":"10.1108\/14635771211218353"},{"key":"bibr4-1354816617692478","doi-asserted-by":"publisher","DOI":"10.1016\/j.tourman.2016.10.012"},{"key":"bibr5-1354816617692478","doi-asserted-by":"publisher","DOI":"10.5367\/te.2016.0546"},{"key":"bibr6-1354816617692478","doi-asserted-by":"crossref","unstructured":"Culiuc A (2014) Determinants of International Tourism. 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