P. A. A. Loof

• Freeliving and plant parasitic nematodes from Spitzbergen
• Freshwater nematodes from Suriname
• Nematoda
• Nematoda, Secernentea (Tylenchida, Aphelenchida)
• Taxonomic studies on the genus Pratylenchus (Nematoda)
• Taxonomy of Hemicycliophora species from west and central Europe