Light Propagation- and Many-particle-induced Non-Lorentzian Lineshapes in Semiconductor Nanooptics
J. Förstner, K.J. Ahn, J. Danckwerts, M. Schaarschmidt, I. Waldmüller, C. Weber, A. Knorr, Physica Status Solidi (B) 234 (2002) 155–165.

Theory of ultrafast dynamics and lineshape of semiconductor quantum well intersubband emitters
I. Waldmüller, J. Förstner, A. Knorr, in: Nonlinear Optics: Materials, Fundamentals and Applications, OSA, 2002.

Coherent nonlinear pulse propagation on a free-exciton resonance in a semiconductor
N.C. Nielsen, S. Linden, J. Kuhl, J. Förstner, A. Knorr, S.W. Koch, H. Giessen, Physical Review B 64 (2002) 245202-245202–10.

Nonlinear Pulse Propagation in Semiconductors: Hole Burning within a Homogeneous Line
J. Förstner, A. Knorr, S.W. Koch, Physical Review Letters 86 (2002) 476–479.

Nonlinear Polariton Pulse Propagation in Bulk Semiconductors
J. Förstner, A. Knorr, S. Kuckenburg, T. Meier, S.W. Koch, H. Giessen, S. Linden, J. Kuhl, Physica Status Solidi (B) 221 (2002) 453–457.