You seem to be attempting to access an item that has been removed from the repository.
There is an alternative version of the item you are trying to access:
Kwasnikowska, Natalia, Moreau, Luc and Van den Bussche, Jan
(2015)
A Formal Account of the Open Provenance Model.
ACM Transactions on the Web, 9 (2).
(doi:10.1145/2734116).
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