Funding for this research was provided by:
FCT-Portugal (EXPL/EEI-SII/2556/2013, PTDC/EEI-SII/5081/2014)
FCT-Portugal (UID/CEC/50021/2013, PTDC/MAT-STA/3358/2014)
National Science Foundation (EF-1137894)
National Science Foundation (GEO-1211972)
FCT-Portugal (EXPL/EEI-SII/2556/2013)
NordForsk (AGMT dtd 05-05-2014)
FCT-Portugal (Fundação para a Ciência e Tecnologia de Portugal (UID/BIA/04050/2013)
National Science Foundation (EF-1137894)
National Science Foundation (GEO-1211972)
NordForsk (AGMT dtd 05-05-2014)
Article History
Received: 26 December 2014
Revised: 20 August 2015
First Online: 20 October 2015
Compliance with ethical standards
:
: The authors declare no competing financial interests.