Low-temperature scanning tunneling spectroscopy as a probe for a confined electron gasM. Wenderoth, M. A. Rosentreter, K. J. Engel, A. J. Heinrich, M. A. Schneider and R. G. UlbrichEurophys. Lett., 45 5 (1999) 579-584DOI: https://doi.org/10.1209/epl/i1999-00206-0