Annales Polonici Mathematici > 1998 > 68 > 1 > 61-82
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journal ISSN : | 0066-2216 |
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Bibliography
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[Abe 1] K. Abe, A characterization of totally geodesic submanifolds in and by an inequality, Tôhoku Math. J. 23 (1971), 219-244.
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[Abe 2] K. Abe, Applications of a Riccati type differential equation to Riemannian manifolds with totally geodesic distributions, Tôhoku Math. J. 25 (1973), 425-444.
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[Bor 1] A. Borisenko, Complete l-dimensional submanifolds of nonpositive extrinsic curvature in a Riemannian space, Mat. Sb. 104 (1977), 559-576 (in Russian).