Tervonen, T A
Belitškin, D
Pant, S M
Englund, J I
Marques, E
Ala-Hongisto, H
Nevalaita, L
Sihto, H
Heikkilä, P
Leidenius, M
Hewitson, K
Ramachandra, M
Moilanen, A
Joensuu, H
Kovanen, P E
Poso, A
Klefström, J
Article History
Received: 8 January 2015
Revised: 14 April 2015
Accepted: 10 May 2015
First Online: 13 July 2015
Competing interests
: The authors declare no conflict of interest.