Ellipticity dependence of atomic and molecular high harmonic generation A. Flettner, J. König, M. B. Mason, T. Pfeifer, U. Weichmann, R. Düren and G. Gerber Eur. Phys. J. D, 21 1 (2002) 115-119 Published online: 24 September 2002 DOI: 10.1140/epjd/e2002-00174-3