GEORGIOU, Nikos. On area stationary surfaces in the space of oriented geodesics of hyperbolic 3-space. Mathematica Scandinavica, Berkeley, CA, United States, v. 111, n. 2, p. 187–209, 2012. DOI: 10.7146/math.scand.a-15224. Disponível em: https://journals.msp.org/mscand/article/view/473. Acesso em: 24 jul. 2026.