TY - JOUR AU - M. Bauer AU - C.-F. Lei AU - K. Read AU - R. Tobey AU - J. Gland AU - Margaret Murnane AU - Henry Kapteyn BT - Physical Review Letters DA - 2001-06 DO - 10.1103/PhysRevLett.87.025501 PY - 2001 T2 - Physical Review Letters TI - Direct Observation of Surface Chemistry Using Ultrafast Soft-X-Ray Pulses VL - 87 SN - 0031-9007 ER -