BioStor
 | Review of the taxonomy of Aster sensu lato (Asteraceae: Astereae), emphasizing the New World species G L Nesom Phytologia 77: 141-297 |
 | Beitrag zur Kenntnis der Oligochoeten-Fauna der Schweiz K Bretscher (1899) Revue Suisse de Zoologie 6: 369-426 |
 | Oligochaeta Wilhelm Michaelsen (1900) Das Tierreich 10: 1-575 |
 | Three new species of Oligochaeta (Naididae) from the southeastern US (1977) Proceedings of The Biological Society of Washington 90: 483-490 |
 | A new species of Homochaeta (Oligochaeta: Naididae) from the west coast of Canada P M Chapman (1981) Proceedings of The Biological Society of Washington 94: 455-457 |
 | Chromosome counts of and notes on some Old World Asters (Asteraceae) A G Jones and R A Smogor (1983) Phytologia 53: 429-432 |
 | The Genus Paranais (Oligochaeta, Naididae) In North america R O Brinkhurst and K A Coates (1985) Proceedings of The Biological Society of Washington 98: 303-313 |
 | The Generic And Subfamilial Classification Of The Naididae (Annelida, Oligochaeta) R O Brinkhurst (1985) Proceedings of The Biological Society of Washington 98: 470-475 |