Lundar, Tryggve http://orcid.org/0000-0001-5772-8965
Due-Tønnessen, Bernt Johan
Fric, Radek
Egge, Arild
Krossnes, Bård
Due-Tønnessen, Paulina
Stensvold, Einar
Brandal, Petter
Article History
Received: 15 February 2018
Accepted: 11 April 2018
First Online: 22 April 2018