BUSEMANN, H. Remark on "Planes with analogues to Eucledian angular bisectors". MATHEMATICA SCANDINAVICA, [S. l.], v. 38, p. 81–82, 1976. DOI: 10.7146/math.scand.a-11618. Disponível em: https://www.mscand.dk/article/view/11618. Acesso em: 29 apr. 2024.