@article{NeuvonenFulopNeuvonenetal.2008,
  author    = {Helmi Neuvonen and Ferenc Fulop and Kari Neuvonen and Andreas Koch and Erich Kleinpeter},
  title     = {Electronic effects of heterocyclic ring systems as evaluated with the aid of 13C and 15N NMR chemical shifts and NBO analysis},
  doi       = {10.1002/Poc.1271},
  url       = {http://onlinelibrary.wiley.com/doi/10.1002/poc.1271/pdf},
  year      = {2008},
}