@article{Hughes_1989,
title={Clinical electroencephalography and topographic brain mapping. Technology and practice},
volume={73},
ISSN={0013-4694},
url={http://dx.doi.org/10.1016/0013-4694(89)90098-9},
DOI={10.1016/0013-4694(89)90098-9},
number={5},
journal={Electroencephalography and Clinical Neurophysiology},
publisher={Elsevier BV},
author={Hughes,
John R.},
year={1989},
month=nov,
pages={471} }