Piezoelectric composite oscillator for measuring mechanical spectroscopy in small samples that non-match in half wavelength

1. Bonifacich, F.G.
2. Lambri, O.A.
3. Pérez Landazábal, J.I.
4. Recarte, V.
5. Zelada, G.I.
6. Mocellini, R.R.
7. Sánchez Alarcos, V.
8. Marenzana, A.
9. Plazaola, F.