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Polish Journal of Environmental Studies > 2009 > 18 > 2 > 301-304
Bulletin of the Veterinary Institute in Puławy > 2009 > 53 > 1 > 147-151
Bulletin of the Veterinary Institute in Puławy > 2009 > 53 > 1 > 79-82
Bulletin of the Veterinary Institute in Puławy > 2009 > 53 > 2 > 247-250