LEE, Hyunjin; PAK, Eunmi; SUH, Young Jin. Hopf Hypersurfaces in Complex Two-Plane Grassmannians With $\mathfrak{D}$-Parallel Shape Operator. Mathematica Scandinavica, Berkeley, CA, United States, v. 117, n. 2, p. 217–230, 2015. DOI: 10.7146/math.scand.a-22868. Disponível em: https://journals.msp.org/mscand/article/view/376. Acesso em: 24 jul. 2026.