1.
Grondgebruikersinventarisatie Bedum - Ten Boer : gebied 240
Grondgebruikersinventarisaties in Nederland : gebied 232 Haarlemmermeer
2.
Abstracts of the Belgian Nephrology Contact group (Fund for Scientific Medical Research), Leuven, Belgium, 19 December 1992: Pathology of anaemia in nephropathia epidemica
Abstracts of the First Scientific Meeting of the Belgian Society of Nephrology, Liege, Belgium, 4 December 1993: Leptospirosis (LSP) or rat-transmitted hantavirus (HV) nephropathy?
Risk factors for human hantavirus infection: Franco-Belgian collaborative case-control study during 1995-6 epidemic