de Jong, Y. S. D. M., & Los, W. (2005). EuroCAT second WP3 Annual Report. Zoologisch Museum Amsterdam.
de Jong, Y. S. D. M., & Los, W. (2005). Fauna Europaea Final Technical and Management EU Report. Zoologisch Museum Amsterdam.
de Jong, Y. S. D. M., & Los, W. (2004). EuroCAT first WP3 Annual Report. Zoological Museum Amsterdam.
de Jong, Y. S. D. M., & Los, W. (2004). Fauna Europaea Fourth Annual Technical and Management Report. Zoological Museum Amsterdam.
de Jong, Y. S. D. M., & Los, W. (2004). Fauna Europaea Eight 6-monthly Management Report. Zoological Museum Amsterdam.
Los, W., & Hof, C. H. J. (2003). Start of the European Network for Biodiversity Information. In 4th Biennial Meeting of the Systematics Association (pp. 23-23). Trinity College.
Los, W., & de Jong, H. (2003). Towards a management and business plan. In M.J. Scoble (Ed.), The European Natural History Specimen Information Network (pp. 76-86).
Los, W., & de Jong, Y. S. D. M. (2003). Establishment of the Fauna Europaea Service. IBED-ZMA.
Los, W., & Hof, C. H. J. (2002). An introduction to the European Network for Biodiversity Information (ENBI). In Abstract sixth International Congress of Systematic and Evolutionary Biology (pp. 61-61). Int. Organization for Systematic and Evolutionary Biology.
Los, W. (2002). De actualiteit van taxonomie voor de CBD. NC-IUCN 2002, (1/2), 53-54.