Totally Geodesic Foliations.
Über die absolute Totalkrümmung höher-dimensionaler Knoten.
On the Type Number of Hypersurfaces in Spaces of Constant Curvature.
Curved flats in symmetric spaces.
Constant mean curvature palnes with inner rotational symmetry in Euclidean 3-space.
Minimal tori in S4.
Cliffordalgebren und neue isoparametrische Hyperflächen.
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