@article{WilhelmGebertRegenstein1997,
  author    = {Wilhelm, Hans E. and Gebert, Horst and Regenstein, Wolfgang},
  title     = {Effect of substituents on viscosity dependence of fluorescence and on the S1 - T1 energy gap of Donor-acceptor substituted trans-stilbenes},
  year      = {1997},
  language  = {en}
}
@article{RegensteinGebertKretzschmar1998,
  author    = {Regenstein, Wolfgang and Gebert, Horst and Kretzschmar, Wolfgang},
  title     = {Charge transfer interaction and static quenching},
  year      = {1998},
  language  = {en}
}
@article{GebertKretzschmarRegenstein1998,
  author    = {Gebert, Horst and Kretzschmar, Wolfgang and Regenstein, Wolfgang},
  title     = {Ground-state complex formation of perylene with pyromellitic dianhydride studied by static fluorescence quenching},
  year      = {1998},
  language  = {en}
}