OBSERVATION OF QUANTUM STEPS IN THE SUPERFLUID CIRCULATION AROUND A FINE WIRE IN LIQUID 4He II IN ROTATION P. W. Karn, D. R. Starks, W. Zimmermann et Jr.J. Phys. Colloques, 39 C6 (1978) C6-170-C6-171DOI: https://doi.org/10.1051/jphyscol:1978675