2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/32769Let $G$ be an Eulerian directed graph with an arc-labeling such that arcs going out from the same vertex have different labels. In this work, we present an algorithm to construct the Eulerian trail starting at an arbitrary vertex $v$ of minimum lexicographical label among labels of all Eulerian trails starting at this vertex. We also show an application of this algorithm to construct the minimal de Bruijn sequence of a language.Tech. Report DIM-CMM, Universidad de Chile, August 2004Discrete Mathematicstext