BibTeX

@article{riecker1998,
  author = {Riecker, Axel and Wildgruber, Dirk and Ackermann, Hermann and Mayer,
	J{ö}rg and Dogil, Grzegorz and Haider, Hubert and Grodd, Wolfgang},
  title = {Motor cortex activation of elementary and complex orofacial movements},
  journal = {NeuroImage},
  year = {1998},
  volume = {9},
  pages = {18-34}
}