Ahola, Susanna
Zhivonitko, Vladimir V
Mankinen, Otto
Zhang, Guannan
Kantola, Anu M.
Chen, Hsueh-Ying
Hilty, Christian
Koptyug, Igor V.
Telkki, Ville-Veikko
Article History
Received: 26 March 2015
Accepted: 13 August 2015
First Online: 18 September 2015
Competing interests
: The authors declare no competing financial interests.