Joan Marull & Josep Maria Mallarach (2005). A GIS methodology for assessing ecological connectivity: application to the Barcelona. Metropolitan AreaLandscape and Urban Planning, Volume 71, Issues 2–4, 28 March 2005, Pages 243-262
Joan Marull & Josep Maria Mallarach (2005). A GIS methodology for assessing ecological connectivity: application to the Barcelona. Metropolitan AreaLandscape and Urban Planning, Volume 71, Issues 2–4, 28 March 2005, Pages 243-262