Morgan, M., Behnke, J. M., Lucas, J., & Peberdy, J. F. (1997). In vitro assessment of the influence of nutrition, temperature and larval density on trapping of the infective larvae of Heligmosomoides polygyrus by Arthrobotrys oligospora, Duddingtonia flagrans and Monacrosporium megalosporum. Parasitology, 115,