Stevens, Laura A.
Behn, Mark D.
McGuire, Jeffrey J.
Das, Sarah B.
Joughin, Ian
Herring, Thomas
Shean, David E.
King, Matt A.
Article History
Received: 13 November 2014
Accepted: 13 April 2015
First Online: 3 June 2015
Competing interests
: The authors declare no competing financial interests.