Upgrading of Medium Beta ALPI Resonators by Nb Sputtering       608
  A.M. Porcellato, L. Badan, L. Bertazzo, A. Capuzzo, D. Carlucci, D. Giora, V. Palmieri, F. Stivanello, INFN-LNL, Legnaro, Padova; S.Y. Stark, Strumenti Scientifici, CINEL, Vigonza, Padova      
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