Phys. Rev. Lett.

Broers, B., Christian, J. F., Hoogenraad, J. H., van der Zande, W. J., van Linden van den Heuvell, H. B., & Noordam, L. D. (1993). Time-resolved dynamics of electronic wave packets above the classical field-ionization threshold. Phys.Rev.Lett., 71, 344–347.