Poo, M.-m., Pignatelli, M., Ryan, T. J., Tonegawa, S., Bonhoeffer, T., Martin, K. C., Rudenko, A., Tsai, L.-H., Tsien, R.
W., Fishell, G., Mullins, C., Goncalves, J. T., Shtrahman, M., Johnston, S. T., Gage, F. H., Dan, Y., Long, J., Buzsaki, G.,
& Stevens, C. (2016). What is memory? The present state of the engram.
BMC Biology, 14. doi:10.1186/s12915-016-0261-6.