R. J. Mc Donnell, De Ley, P., De Ley, I. Tandingan, Paine, D., Bert, W., and Holovachov, O.,
“Description of Phasmarhabditis californica n. sp. and first report of P. papillosa (Nematoda: Rhabditidae) from invasive slugs in the USA”,
Nematology, vol. 18, no. 2, pp. 175 - 193, 2016.