additional source
Filipjev, I. N. (1946). Свободноживущие нематоды из северного ледовитого океана = Nématodes libres du bassin polaire. <em>Trudy Dreifuiushchaiae Ekspeditsiia Glavsevmorputi na Ledokol'nom Parokhode G. Sedov 1937-1940.</em> III: 158-184. (look up in IMIS) [details] Available for editors [request]
additional source
Zograf, J. K.; Pavlyuk, O. N.; Trebukhova, Y. A.; TU, N. D. (2017). Revision of the genus Parasphaerolaimus (Nematoda: Sphaerolaimidae) with description of new species. <em>Zootaxa.</em> 4232(1): 58., available online at https://doi.org/10.11646/zootaxa.4232.1.4 [details] Available for editors [request]
From editor or global species database