EXNER, P.; LIPOVSKÝ, J. RESONANCES ON HEDGEHOG MANIFOLDS. Acta Polytechnica, [S. l.], v. 53, n. 5, p. 416–426, 2013. DOI: 10.14311/AP.2013.53.0416. Disponível em: https://ojs.cvut.cz/ojs/index.php/ap/article/view/1851. Acesso em: 5 may. 2024.