Template:Finashin&Kreck&Viro1987
From Manifold Atlas
S. M. Finashin, M. Kreck and O. Y. Viro, Exotic knottings of surfaces in the -sphere, Bull. Amer. Math. Soc. (N.S.) 17 (1987), no.2, 287–290. MR903734 (88m:57030) Zbl 0635.57008