by Ijland, Marloes, Poels, Erik F.J., Verhagen, Wim I.M.
Published in Neuro-ophthalmology (Amsterdam : Aeolus Press. 1980) (2001)

by Jansen, P.A.F., Schulte, B.P.M., Poels, E.F.J., Gribnau, F.W.J.
Published in Clinical neurology and neurosurgery (1987)

by Jansen, P.A.F., Thien, Th, Gribnau, F.W.J., Schulte, B.P.M., Willemsen, J.J., Lamers, K.J.B., Poels, E.F.J.
Published in Clinical neurology and neurosurgery (1988)