Letrud, Kåre http://orcid.org/0000-0002-5434-8227
Hernes, Sigbjørn http://orcid.org/0000-0002-1091-1903
Funding for this research was provided by:
direct funding
Peer Review Statement: The publishing and review policy for this title is described in its Aims & Scope.
Publication History
Received: 2018-05-11
Accepted: 2018-08-29
Published: 2018-09-19