Laser pulse duration effects in Xe2+ ions induced by multiphoton absorption at 0.53 μm A. L'Huillier, L.A. Lompre, G. Mainfray et C. Manus J. Phys. France, 44 11 (1983) 1247-1255 DOI: 10.1051/jphys:0198300440110124700