Uncertainty of measurement for competitive and indirect ELISAs., Toussaint, J F., Assam P, Cay Ann Brigitte, Dekeyser F, Knapen K, Imberechts Hein, Goris N, Molenberghs G, Mintiens K, and De Clercq Kris , Rev Sci Tech, 2007 Dec, Volume 26, Issue 3, p.649-56, (2007)

Long-term protection against bovine leukaemia virus replication in cattle and sheep., Kerkhofs, Pierre, Gatot J S., Knapen K, Mammerickx M, Burny A, Portetelle D, Willems L, and Kettmann R , J Gen Virol, 2000 Apr, Volume 81, Issue Pt 4, p.957-63, (2000)

Epidemiological evaluation of a monoclonal ELISA detecting antibodies against bovine leukaemia virus in serum pools., Knapen, K, Kerkhofs Pierre, Thiry E, and Mammerickx M , Epidemiol Infect, 1994 Dec, Volume 113, Issue 3, p.563-9, (1994)