Matuska-Łyżwa, J. 2014. Ecological and morphological characteristics of Steinernema kraussei (Rhabditida: Steinernematidae): comparison of nematodes isolated from the natural environments and originated from the commercial pesticide. Ecological Questions. 19, (Aug. 2014), 51–55. DOI:https://doi.org/10.12775/EQ.2014.005.