@article{publication-1569,
	author={Kiebel, Stefan J and Daunizeau, Jean and Friston, Karl J},
	doi={10.3389/neuro.11.020.2009},
	issn={1662-5196},
	journal={Frontiers in Neuroinformatics},
	pages={20-20},
	publisher={Frontiers Research Foundation},
	title={Perception and hierarchical dynamics},
	volume=3,
	year=2009,
}