publikaties van de nvb Onderzoek in bibliotheek- en informatiewetenschap : verslag van het congres in de 'Leeuwenhorst' te Noordwijkerhout op 23 en 24 juni 1987 ter gelegenheid van het … pharmacochemistry library Biological activity and chemical structure : proceedings of the IUPAC-IUPHAR symposium held in Noordwijkerhout (The Netherlands), August 30-September 2, 1977 / ed. by J.A. Keverling … Changing attitudes towards the disabled : proceedings of the sixth world congress of the International Society for the Welfare of Cripples held at The Hague, …