VOICA, Christian. Class of rational surfaces in $\mathsf P^4$. Mathematica Scandinavica, Berkeley, CA, United States, v. 92, n. 2, p. 210–222, 2003. DOI: 10.7146/math.scand.a-14401. Disponível em: https://journals.msp.org/mscand/article/view/818. Acesso em: 24 jul. 2026.