“Description of Helicotylenchus Gerti Sp. N. And New Records of Some Species of Helicotylenchus (Steiner, 1945) from Ethiopia (Nemata: Hoplolaimidae)”. 2009. Journal of Nematode Morphology and Systematics 8 (1): 39/49. https://revistaselectronicas.ujaen.es/index.php/jnms/article/view/88.