2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/189738We give a detailed exposition of the Alexandrov-Kontsevich-Schwarz- Zaboronsky superfield formalism using the language of graded manifolds. As a main illustarting example, to every Courant algebroid structure we associate canonically a three-dimensional topological sigma-model. Using the AKSZ formalism, we construct the Batalin-Vilkovisky master action for the model.13 pages, based on lectures at Rencontres mathematiques de Glanon 2003High Energy Physics - TheorySymplectic Geometrytext