http://www.km.kongsberg.com/ks/web/nokbg0238.nsf/AllWeb/FF628A62EE1DB1C7C1257299005263AF?OpenDocument KONGSBERG installs echo sounders on Argentine Navy survey ships] Since then, Puerto Deseado was involved in the investigation of the continental shelf of the Argentine Sea that was finally submitted on 22 April 2009 to the United Nations (UN) for 1700000 sqkm of ocean territory to be recognised as Argentina's as governed by the Convention on the Continental Shelf and Convention on the Law of the Sea.