When does an electron exit a tunneling barrier?D. Shafir, H. Soifer, B. D. Bruner, M. Dagan, Y. Mairesse, S. Patchkovskii, M. Yu. Ivanov, O. Smirnova and N. DudovichEPJ Web of Conferences, 41 (2013) 02019DOI: https://doi.org/10.1051/epjconf/20134102019