INNAMI, Nobuhiro; ITOKAWA, Yoe; NAGANO, Tetsuya; SHIOHAMA, Katsuhiro. Geodesic families characterizing flat metrics on a cylinder and a plane. Mathematica Scandinavica, Berkeley, CA, United States, v. 128, n. 2, 2022. DOI: 10.7146/math.scand.a-132247. Disponível em: https://journals.msp.org/mscand/article/view/110. Acesso em: 24 jul. 2026.