@article {Procter1984_410,
	title = {Towards a biogeography of free-living soil nematodes. I. Changing species richness, diversity and densities with changing latitude},
	journal = {Journal of Biogeography},
	volume = {11},
	year = {1984},
	pages = {103{\textendash}117},
	author = {Procter, Dennis L. C.}
}
@article {Procter1990_411,
	title = {Global overview of the functional roles of soil-living nematodes in terrestrial communities and ecosystems},
	journal = {Journal of Nematology},
	volume = {22},
	year = {1990},
	pages = {1{\textendash}7},
	author = {Procter, Dennis L. C.}
}
