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Environmental Monitoring and Assessment > 2017 > 189 > 8 > 1-12
Polish Journal of Ecology > 2008 > 56 > 1
Acta Ornithologica > 2005 > 40 > 2 > 147-154
Acta Ornithologica > 2005 > 40 > 1 > 75-78
Acta Ornithologica > 2001 > 36 > 2