1. Time delay anisotropy in photoelectron emission from isotropic helium. (August 2015) Authors: Heuser, S; Jiménez-Gálan, Á; Cirelli, C; Sabbar, M; Boge, R; Lucchini, M; Gallmann, L; Ivanov, I; Kheifets, A; Dahlström, J M; Lindroth, E; Argenti, L; Martín, F; Keller, U Journal: Journal of physics Issue: Number 635(2015) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗