@ARTICLE{
TITLE="Hemodynamics for Brain-Computer Interfaces: Optical correlates of control signals",
AUTHOR="F. Matthews, B. A. Pearlmutter, T. E. Ward, C. Soraghan, and C. Markham",
YEAR="2008",
VOLUME="25",
NUMBER="1",
PAGES="87-94",
JOURNAL="IEEE Signal Processing Magazine"
}