Comparison of high-order harmonic generation in uracil and thymine ablation plumes - Hutchison, C; Ganeev, RA; Castillejo, M; Lopez-Quintas, I; Zair, A; Weber, SJ; McGrath, F; Abdelrahman, Z; Oppermann, M; Martin, M; Lei, DY; Maier, SA; et al. (PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2013)