2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/107533We introduce two axioms in Laguerre geometry and prove that they provide a characterization of miquelian planes over fields of the characteristic different from 2. They allow to describe an involutory automorphism that sheds some new light on a Laguerre inversion as well as on a symmetry with respect to a pair of generators.9 p., 7 figCombinatoricsMetric Geometry51B20text