@article { penbraval2007, author = "Penas, Ana Catarina and Bravo, Maria Antónia and Valadas, Vera and Mota, Manuel", title = "Detailed morphobiometric studies of Bursaphelenchus xylophilus and characterisation of other Bursaphelenchus species (Nematoda: Parasitaphelenchidae) associated with Pinus pinaster in Portugal", year = "2007" }