@incollection{:/content/books/9789210457460s002-c002, author = "United Nations", title = "No. 35022. Spain and Panama", booktitle = "Treaty Series 2031", publisher = "United Nations", year = "2001", pages = "19-48", url = "https://www.un-ilibrary.org/content/books/9789210457460s002-c002" }