BISTABLE BEHAVIOUR OF AN ELECTRON PARAMAGNETIC RESONANCE SPECTROMETER M. CACCHIANI, M. GIORDANO, M. MARTINELLI, L. PARDI et S. SANTUCCIJ. Phys. Colloques, 49 C2 (1988) C2-169-C2-172DOI: https://doi.org/10.1051/jphyscol:1988240