BRZENZINSKI, J. Lattices and Models of Fields of Genus 0. MATHEMATICA SCANDINAVICA, [S. l.], v. 32, p. 22–30, 1973. DOI: 10.7146/math.scand.a-11443. Disponível em: https://tidsskrift.dk/math/article/view/11443. Acesso em: 14 aug. 2026.