@article{HennigStraussVanselowetal.2009,
  author    = {Sven Hennig and Holger M. Strauss and Katja Vanselow and {\"O}zkan Yildiz and Sabrina Schulze and Julia Arens and Achim Kramer and Eva Wolf},
  title     = {Structural and functional analyses of PAS domain interactions of the clock proteins Drosophila PERIOD and mouse PERIOD2},
  journal   = {PLoS biology},
  volume    = {7},
  number    = {(4): e1000094},
  pages     = {836 -- 853},
  doi       = {10.1371/journal.pbio.1000094},
  year      = {2009},
}