Björn Eversmann, Martin Jenkner, Franz Hofmann, Christian Paulus, Ralf Brederlow, Birgit Holzapfl, Peter Fromherz, Matthias Merz, Markus Brenner, Matthias Schreiter, Reinhard Gabl, Kurt Plehnert, Michael Steinhauser, Gerald Eckstein, Doris Schmitt-Landsiedel, Roland Thewes. A 128 × 128 CMOS biosensor array for extracellular recording of neural activity. J. Solid-State Circuits, 38(12):2306-2317, 2003. [doi]