TY - JOUR AU - Christov, I AU - Bartels, R AU - Kapteyn, H AU - Murnane, M C2 - Physical Review Letters DA - 2001-01-01 LA - en M1 - 86 PB - Physical Review Letters PY - 2001 TI - Attosecond time-scale intra-atomic phase matching of high harmonic generation ER -