1
Desertification in Europe : proceedings of the Information Symposium in the EEC Programme on Climatology, held in Mytilene, Greece, 15-18 April 1984 /
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2
Components of productivity of mediterranean climate regions : Basic and applied aspects : Photosynthesis, primary production and biomass utilization in mediterranean type ecosystems : international symposium : Kassandra, 13.09.80-15.09.80.
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