References
- Reynoldson, T. B., 1964: Evidence for intraspecific competition in field populations of triclads. — J. Anim. Ecol. (Suppl.) 187–201
- Reynoldson, T. B. & Bellamy, L. S., 1970: The status of Dugesia lugubris and D. polychroa (Turbellaria, Tricladida) in Britain. — J. Zool. Lond. 162, 157–177.