Commentarii Mathematici Helvetici · 1979 · 20 citations · 5 references
Dirichlet FormDirichlet RegionsGlobal AnalysisRiemannian Manifold
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Journal of Symbolic Logic · 1948 · 1.4K citations
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Herbert Busemann · Acta Mathematica · 1948 · 136 citations · Full text
Cut loci in Riemannian manifolds
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