HALF-HARMONIC OSCI LLATIONS AT rf INDUCED STEPS IN SUPERCONDUCTING MICROBRIDGES AND TUNNEL JUNCTIONS J. Mygind, N. F. Pedersen, O. H. Soerense et B. DueholmJ. Phys. Colloques, 39 C6 (1978) C6-597-C6-598DOI: https://doi.org/10.1051/jphyscol:19786269