TY - CONF AU - Tenio Popmintchev AU - Ming-Chang Chen AU - Alon Bahabad AU - Michael Gerrity AU - Pavel Sidorenko AU - Oren Cohen AU - Ivan Christov AU - Margaret Murnane AU - Henry Kapteyn BT - unknown DA - 2009-06 DO - 10.1073/pnas.0903748106 ET - 26 PB - PNAS PY - 2006 EP - 10516 T2 - unknown TI - Phase matching of high harmonic generation in the soft and hard X-ray regions of the spectrum UR - https://www.pnas.org/doi/full/10.1073/pnas.0903748106 VL - 106 ER -