1. [Potato cyst nematodes, biology, distribution, control measures and damage assessment.];Abreu;Ciência Biológica,1989
2. [New infestations of Heterodera rostochiensis W., 1923 (Nematoda) in the Canary Islands);Bello;Anales de Edafologia y Agrobíología,1968
3. Bello , A. Gonzalez , J. A. Arias , M. 1990 Cyst nematodes in the Canary Islands Proceedings of the 8th Congress of the Mediterranean Phytopathological Union 399 401