Sawinski, J., Wallace, D. J., Greenberg, D. S., Grossmann, S., Denk, W., & Kerr, J. N. (2009).
Visually evoked activity in cortical cells imaged in freely moving animals. Proceedings of the National
Academy of Sciences of the United States of America, 106(46), 19557-62. doi:10.1073/pnas.0903680106.