Olejniczak, I. and Makulec, G. 2014. The impact of earthworms on collembolan (Collembola) communities in grass mono- and polycultures. Studia Ecologiae et Bioethicae. 12, 3 (Sep. 2014), 83–97. DOI:https://doi.org/10.21697/seb.2014.12.3.05.