TY - JOUR KW - non-Palaiseau KW - paper AU - M GAVRILA AU - Alfred Maquet AU - Valérie Véniard BT - PHYSICAL REVIEW A DA - JUL 1 M1 - 1 PY - 1990 SP - 236 EP - 247 T2 - PHYSICAL REVIEW A TI - STIMULATED 2-PHOTON FREE-FREE TRANSITIONS IN A COULOMB POTENTIAL - FORMALISM VL - 42 SN - 1050-2947 ER -