@incollection{:/content/books/9789287043528s005-c001, author = "World Trade Organization", title = "Introducción", booktitle = "Informe Sobre el Comercio Mundial 2011", publisher = "WTO", year = "2011", pages = "42-45", url = "https://www.wto-ilibrary.org/content/books/9789287043528s005-c001" }