Direct evidence for oscillatory screening in the quantum Hall effect regimeA. Raymond, B. Couzinet, M. I. Elmezouar, M. Kubisa, W. Zawadzki and B. EtienneEurophys. Lett., 43 3 (1998) 337-342DOI: https://doi.org/10.1209/epl/i1998-00362-7