1. Centre of Studies on Geography and Spatial Planning (CEGOT) and Department of Geography and Tourism, Faculty of Arts and Humanities, Colégio de São Jerónimo, University of Coimbra, Coimbra, 3004‐530, Portugal
2. Instituto de Geografia e Ordenamento do Território (IGOT), Universidade de Lisboa, Rua Branca Edmée Marques, Lisbon, 1600-274, Portugal