TY - JOUR AU - G. Bandarage AU - A. Maquet AU - John Cooper BT - Physical Review A DA - Jan-02-1990 DO - 10.1103/PhysRevA.41.1744 PY - 1990 SP - 1744 EP - 1746 T2 - Physical Review A TI - Harmonic generation by a classical hydrogen atom in the presence of an intense radiation field VL - 41 SN - 1050-2947 ER -