@article{KleinpeterHeydenreichChatterjeeetal.1994,
  author    = {Kleinpeter, Erich and Heydenreich, Matthias and Chatterjee, S. K. and Rudorf, Wolf-Dieter},
  title     = {Study of the pi-electron distribution in push-pull alkenes by 1H and 13C NMR spectroscopy, III : the conformation of 3,4-Dihydro-4-oxo-2H-thiins},
  year      = {1994},
  language  = {en}
}
@article{KleinpeterHeydenreichChatterjeeetal.1994,
  author    = {Kleinpeter, Erich and Heydenreich, Matthias and Chatterjee, S. K. and Rudorf, Wolf-Dieter},
  title     = {Study of the pi-electron distribution in push-pull alkenes by 1H and 13C NMR spectroscopy},
  year      = {1994},
  language  = {en}
}
@article{KleinpeterKochHeydenreichetal.1995,
  author    = {Kleinpeter, Erich and Koch, Andreas and Heydenreich, Matthias and Chatterjee, S. K. and Rudorf, Wolf-Dieter},
  title     = {Study of the pi-electron distribution in push-pull alkenes by 1H and 13C NMR spectroscopy, IV : the conformation and dynamic behaviour of substituted N-Phenyl-2,3-dihydro-4(1H)-pyridones},
  year      = {1995},
  language  = {en}
}
@article{KleinpeterThomasUhligetal.1993,
  author    = {Kleinpeter, Erich and Thomas, Steffen and Uhlig, G. and Rudorf, Wolf-Dieter},
  title     = {Study of the distribution of pi-Electrons in Push-Pull Alkenes by 1H an 13C NMR spectroscopy},
  year      = {1993},
  language  = {en}
}