C. J. Navarro Yañez and C. Mateos Mora, “Contact and local services in Andalusia: the contextual effect of place of residence”, Cuad. Trab. Soc., vol. 25, no. 2, pp. 321–332, Jul. 2012, doi: 10.5209/rev_CUTS.2012.v25.n2.39618.