1. Keys to genera of the superfamily Metastrongyloidea;Anderson,1978
2. Host parasite relations and evolution of the Metastrongyloidea (Nematoda);Anderson;Mem. Mus. Natl. Hist. Nat. Ser. A. Zool.,1982
3. Nematode Parasites of Vertebrates: Their Development and Transmission;Anderson,2000
4. Lungworms (Metastrongyloidea: Pseudaliidae) of harbour porpoise Phocoena phocoena (L. 1758);Arnold;Can. J. Zool.,1974
5. The current status of harbour porpoises (Phocoena phocoena) in German waters;Benke;Arch. Fish. Mar. Res.,1998