2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/61674We show that there exists no Lagrangian embeddings of the Klein bottle into $\CC^{2}$. Using the same techniques we also give a new proof that any Lagrangian torus in $\CC^2$ is smoothly isotopic to the Clifford torus.revised version, 15 pages, no figures, easier proof, clearer structuredSymplectic Geometrytext