@incollection{Lieberman2006,
  author    = {Philip Lieberman},
  title     = {On the subcortical bases of the evolution of language},
  url       = {http://edoc.bbaw.de/oa/series/reXaIF2DOtIqw/PDF/25nzvtXxXJA_188.pdf},
  year      = {2006},
}