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SYSMIN : an evaluation
Maennig, Wolfgang, (1988)
Le STABEX et le SYSMIN : mécanismes et résultats
Togola, Abdoulaye Wallo, (1997)
Mining
(1985)
Determinants of price fluctuations on world commodity markets and their evaluation
Maennig, Wolfgang, (1986)
A method for placing the blame for primary product instability
Maennig, Wolfgang, (1985)
Monument protection and zoning : regulations and public support from an international perspective
Maennig, Wolfgang, (2012)