Funding for this research was provided by:
National Research Foundation of Korea (2010-0020413)
Polska Akademia Nauk (2013/08/A/ST1/00804)
Japan Society for the Promotion of Science (26800002)
Ministero dell’Istruzione, dell’Università e della Ricerca (2010S47ARA_010)
Article History
Received: 17 July 2015
Accepted: 2 November 2015
First Online: 25 November 2015