[138: A Quality Framework for Services of General Interest in Europe COM(2011) 900 final.][139: http://ec.europa.eu/services_general_interest/index_en.htm]
[138: «Un marco de calidad para los servicios de interés general en Europa», COM(2011) 900 final.][139: https://ec.europa.eu/info/topics/single-market/services-general-interest_es.]