DREWES, Frank; HABEL, Annegret; HOFFMANN, Berthold; PLUMP, Detlef. Manipulation of Graphs, Algebras and Pictures. Essays Dedicated to Hans-Jörg Kreowski on the Occasion of His 60th Birthday. Electronic Communications of the EASST, [S. l.], v. 26, 2010. DOI: 10.14279/tuj.eceasst.26.369. Disponível em: https://eceasst.org/index.php/eceasst/article/view/1631. Acesso em: 5 jan. 2025.