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:
Beek, Remco C.H van de and Vaucher, Cicero S. and Leenaerts, Domine M.W. and Klumperink, Eric A.M. and Nauta, Bram (2004) A 2.5-to-10 GHz Clock Multiplier Unit with 0.22 ps RMS jitter. IEEE Journal of Solid-State Circuits, 39 (11). pp. 1862-1872. ISSN 0018-9200