KOPPINEN, M. A Note on Inner Coalgebra Measuring and Derivations. MATHEMATICA SCANDINAVICA, [S. l.], v. 76, p. 201–204, 1995. DOI: 10.7146/math.scand.a-12535. Disponível em: https://www.mscand.dk/article/view/12535. Acesso em: 23 nov. 2024.