Two-Quantum-Path Interferences in High Order Harmonic Generation - Amelle Zar; Mirko Holler; Annalisa Guandalini; Florian Schapper; Jens Biegert; Ursula Keller; Pascal Salires; Thierry Auguste; Eric Cormier; Adam Wyatt; Antoine Monmayrant; Ian A. Walmsley (Optical Society of America, 2007)