by Geleta, S.B, Brinsfield, R.B, Mulford, F.R, Womack, H.E, Briand, C.H, O'Keefe, J.A
Published in Canadian journal of plant science (01.07.2004)

by Glass, B. P., J. A. O' Keefe
Published in Science (American Association for the Advancement of Science) (27.09.1985)

by Wolpaw, J.R., O'Keefe, J.A., Dowman, R.
Published in Electroencephalography and clinical neurophysiology (01.09.1985)

by Dowman, R., O'Keefe, J.A., Wolpaw, J.R.
Published in Electroencephalography and clinical neurophysiology (01.09.1985)

by O'Keefe, J. A., Glass, B. P.
Published in Science (American Association for the Advancement of Science) (01.02.1985)

by O'Keefe, John A.
Published in Die Naturwissenschaften (01.01.1972)