manuscripta mathematica · 1979 · 108 citations · 6 references
Harmonic SpaceGlobal AnalysisJacobi FieldsQuasiconformal MappingNonlinear Functional Analysis
6
J. Eells, L. Lemaire · Bulletin of the London Mathematical Society · 1978 · 960 citations
Philip Hartman · Canadian Journal of Mathematics · 1967 · 308 citations · Full text
Integral Geometry, Homotopic Harmonic Maps, Global Geometry +9