Bongers T: The maturity index: an ecological measure of environmental disturbance based on nematode species composition. Oecologia 1990, 83:14–19.

Bongers T, Ferris H: Nematode community structure as a biomonitor in environmental monitoring. Trends Ecol Evol 1999, 14:224–228.

Ferris H, Bongers T, De Goede RGM: A framework for soil food web diagnotics: Extension of the nematode faunal analysis concept. Appl Soil Ecol 2001, 18:13–29.   

Höss S, Nguyen HT, Menzel R, Pagel-Wieder S, Miethling-Graff R, Tebbe CC, Jehle JA, Traunspurger W: Assessing the risk posed to free-living soil nematodes by a genetically modified maize expressing the insecticidal Cry3Bb1 protein. Sci Total Environ 2011, 409:2674–2684.

Ruf A, Beylich A, Blick T, Buechs W, Glante F, Höss S, Ross-Nikoll M, Ruess L, Russell DJ, Römke J, Seitz H, Theißen B, Toschki A, Weinmann C, Zueghart W: Soil organisms as an essential element of a monitoring plan to identify the effects of GMO cultivation. Requirements – Methodology – Standardisation. BIORISK – Biodivers Ecosyst Risk Assess 2013, 8:73–87.

VDI: Monitoring der Wirkung von gentechnisch veränderten Organismen (GVO) - Wirkung auf Bodenorganismen. 2014:pp. 72.   

Höss S, Nguyen HT, Menzel R, Pagel-Wieder S, Miethling-Graff R, Tebbe CC, Jehle JA, Traunspurger W: Assessing the risk posed to free-living soil nematodes by a genetically modified maize expressing the insecticidal Cry3Bb1 protein. Sci Total Environ 2011, 409:2674–2684.