1. Soil organic matter characteristics as indicator of Chernozem genesis in the Baltic Sea region;Acksel;Geoderma Reg.,2016
2. Human activity formed deep, dark topsoils around the Baltic Sea;Acksel;Geoderma Reg.,2017
3. Anthropogenic features;Adderley,2010
4. Bodenkundliche Kartieranleitung;Ad-hoc-AG Boden,2005
5. Chernozem – soil of the year 2005;Altermann;J. Plant Nutr. Soil Sci.,2005