TY - JOUR KW - pfc AU - Henry Kapteyn AU - Margaret Murnane AU - Ivan Christov BT - Physics Today DA - 2005 DO - 10.1063/1.1897563 PY - 2005 EP - 39 T2 - Physics Today TI - Extreme Nonlinear Optics: Coherent X Rays from Lasers VL - 58 ER -