SEPPÄNEN, Henrik. Quaternionic discrete series for $Sp(1,1)$. Mathematica Scandinavica, Berkeley, CA, United States, v. 104, n. 1, p. 5–32, 2009. DOI: 10.7146/math.scand.a-15082. Disponível em: https://journals.msp.org/mscand/article/view/615. Acesso em: 24 jul. 2026.