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1990
Species conservation
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1983
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1991
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European Union action plans for eight priority bird species
2001
Schäffer, Norbert |
Gallo-Orsi, Umberto |
Informe sobre el programa de áreas importantes para aves en Panamá
1998
Angehr, George R. |
Jordán, Osvaldo |
Prime butterfly areas in Europe : priority sites for conservation
2003
Swaay, Chris van |
Warren, Martin |
Italian ecological network : the role of the protected areas in the conservation of vertebrates
2003
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Montemaggiori, Alessandro |