Template:Heyns & Swart, 1998
- Heyns, J.; Swart, A. 1998: On the morphology of Penjatinema natalense n. gen., n. sp., with proposal of a new subfamily, Penjatinematinae (Rhabditida: Cephalobidae). Nematologica 44(4): 381–390. DOI: 10.1163/005525998X00052