来源:Polar research , 2018
作者:Vinay Rajdev^2, Gabriela Ibarguchi^1
关键词:Arctic research;funding agencies;...
使用许可:CC BY-NC
来源:American Journal of Applied Sciences , 2005
作者:Antonios Adamopoulos, Chaido Dritsaki
关键词:Causal Relationship;Macroeconomic Activity;...
使用许可:Unknown