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Publié 1992
Full text available from Agricultural Science Database: 01/01/2002 to present
Électronique
Revue
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7
Publié 2010
Full text available from East Europe, Central Europe Database: 01/01/2010 to 12/31/2014Full text available from Education Database: 01/01/2010 to 12/31/2014
Full text available from East Europe, Central Europe Database: 01/01/2016 to present
Full text available from Education Database: 01/01/2016 to present
Électronique
Revue
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Full text available from East Europe, Central Europe Database: 01/01/2002 to present
Full text available from Environmental Science Database: 01/01/2002 to present
Full text available from Science Database: 01/01/2002 to present
Électronique
Revue
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Publié 1999
Full text available from Agricultural Science Database: 01/01/2017 to present
Électronique
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