Using the correspondence between
-dimensional
Laguerre planes and compact antiregular generalized quadrangles with parameter
we show that almost each automorphism of such a Laguerre plane
that induces a translation in the derived affine plane at a point
is a Laguerre translation, that is, fixes all points on the parallel class of
.
The same is true for ovoidal Laguerre planes over ovals that also are dual
ovals.