S. Boden

Illuminating the BOLD signal: combined fMRI-fNIRS studies.

A. Villringer, H. Obrig, J. Steinbrink, 2006, Magnetic resonance imaging.

The oxygenation response to functional stimulation: Is there a physiological meaning to the lag between parameters?

Hellmuth Obrig, Jens Steinbrink, Stefan P. Koch, 2007, NeuroImage.