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An empirical analysis of structural forces in refractory metal markets
Langhammer, Dirk Johannes, (2010)
Determining labour shortages and the need for labour migration from third countries in the EU : Synthesis Report for the EMN Focussed Study 2015
(2016)
Lebensressource Wasser: Wasserknappheit und Wasserverschmutzung
Simonis, Udo E., (1990)
Excerpt from Tragic choises
Calabresi, Guido, (1980)
Democracy and deterrence : the history and future of nuclear strategy
Bobbitt, Philip, (1988)
U.S. nuclear strategy : a reader
Bobbitt, Philip, (1989)