@article{StrehmelSarkerLahtietal.2004,
  author    = {Veronika Strehmel and A. M. Sarker and P. M. Lahti and F. E. Karasz and Bernd Strehmel},
  title     = {One and two-photon optical properties of ionic block copolymers with phenylenediethylenebispyridinium- chromophores},
  year      = {2004},
}