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:
Jong, P.H. de and Loendersloot, R. and Boer, A. de and Hoogt, P.J.M. van der (2012) Lab-scale experimental validation of a piezoelectric energy harvesting lag damper. In: 38th European Rotocraft Forum, ERF 2012, 4-7 September 2012, Amsterdam (pp. 1 - 8).