M.  Vila-Farré, Sluys, R., Almagro, Í., Handberg-Thorsager, M., and Romero, R., ?Freshwater planarians (Platyhelminthes, Tricladida) from the Iberian Peninsula and Greece: diversity and notes on ecology?, Zootaxa, vol. 2779, pp. 1-38, 2011.

M.  Vila-Farré, Sluys, R., Mateos, E., Jones, H. D., and Romero, R., ?Land planarians (Platyhelminthes: Tricladida: Geoplanidae) from the Iberian Peninsula: new records and description of two new species, with a discussion on ecology?, Journal of Natural History, vol. 45, pp. 869 - 891, 2011.