You seem to be attempting to access an item that has been removed from the repository.
There is a later version of the item you are trying to access:
Bernstein, Michael, Van Kleek, Max, Karger, David and schraefel, mc (2008) Information scraps: how and why information eludes our personal information management tools. ACM Transactions on Information Systems, 26, (4), 1-46. (doi:10.1145/1402256.1402263).