USE OF AN STM TO DEFINE AND MEASURE AN OPERATIONAL TUNNELING TIME P.H. Cutler, T.E. Feuchtwang, Z. Huang, T.T. Tsong, H. Nguyen, A.A. Lucas and T.E. Sullivan J. Phys. Colloques, 48 C6 (1987) C6-101-C6-106 DOI: 10.1051/jphyscol:1987617