D.
B.
Foote
Foote, D. B., Lin, Y. ., Pi, L. W., Djiokap, J. M. N., Starace, A. F., & Hill, W. T. (2017). Ionization enhancement and suppression by phase-locked ultrafast pulse pairs. Physical Review A, 96. http://doi.org/10.1103/PhysRevA.96.023425