The search for Argentina's missing submarine
https://en.wikipedia.org/wiki/TR-1700-class_submarine
Argentina: Missing sub could be out of oxygen soon
http://fox5sandiego.com/2017/11/21/argentina-missing-sub-could-be-out-of-oxygen-soon/
The search for Argentina's missing submarine
https://en.wikipedia.org/wiki/TR-1700-class_submarine
Argentina: Missing sub could be out of oxygen soon
http://fox5sandiego.com/2017/11/21/argentina-missing-sub-could-be-out-of-oxygen-soon/