TY - JOUR AU - Andrew Spott AU - Andreas Becker AU - Agnieszka Jaron-Becker BT - Physical Review A DA - 2015-02 DO - 10.1103/PhysRevA.91.023402 PY - 2015 EP - 023402 T2 - Physical Review A TI - Transition from perturbative to nonperturbative interaction in low-order-harmonic generation UR - http://link.aps.org/doi/10.1103/PhysRevA.91.023402 VL - 91 SN - 1050-2947 ER -