You seem to be attempting to access an item that has been removed from the repository.
The item you are trying to access was a duplicate of:
Malchanau, Andrei V. and Vet, Paul E. van der and Roosendaal, Hans (2003) Federating resources of information systems: browsing interface (FRISBI). In: Conferentie Informatiewetenschap 2003, 20 november 2003, Eindhoven (pp. pp. 85-90).