TY - JOUR AU - Christov, I AU - Kapteyn, H AU - Murnane, M C2 - Optics Express DA - 2000-01-01 LA - en M1 - 7 PB - Optics Express PY - 2000 TI - Quasi-phase matching of high-harmonics and attosecond pulses in modulated waveguides ER -