@article{178156,
  author = {J Ortigoso and I Kleiner and Jon Hougen},
  title = {The K-Rotational Labeling Problem for Eigenvectors From Internal Rotor Calculations: Application to Energy Levels of Acetaldehyde Below the Barrier},
  year = {1999},
  number = {110},
  month = {1999-06-01},
  publisher = {Journal of Chemical Physics},
  language = {en},
}