NIEMENMAA, M.; ROSENBERGER, G. On Connected Transversals in Finite Groups. Mathematica Scandinavica, Berkeley, CA, United States, v. 70, p. 172–176, 1992. DOI: 10.7146/math.scand.a-12393. Disponível em: https://journals.msp.org/mscand/article/view/1252. Acesso em: 24 jul. 2026.