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:
Bokhove, Onno and Lynch, Peter (2007) Air parcels and air particles: Hamiltonian dynamics. Nieuw archief voor wiskunde, Ser. 5, vol. 8 (2). pp. 100-106. ISSN 0028-9825