Renault, Lionel
Deutsch, Curtis
McWilliams, James C.
Frenzel, Hartmut http://orcid.org/0000-0002-3481-0867
Liang, Jun-Hong
Colas, François
Article History
Received: 6 August 2015
Accepted: 25 April 2016
First Online: 30 May 2016
Competing interests
: The authors declare no competing financial interests.