
 PlanetMath: Riemannian manifold 
  Indeed, it is possible to define a Riemannian structure on a manifold 
  Crossreferences: distance, rectifiable curves, infimum, distance metric, coordinate chart, atlas, manifold, riemannian structure, matrix, fix, smooth functions, components, vector fields, frame, 1forms, coframe, open subset, local coordinates, function, global sections, sheaf, cotangent bundle, positive definite, symmetric, bilinear form, point, field, type, tensor 
  This is version 14 of Riemannian manifold, born on 20020912, modified 20061022. 
 planetmath.org /encyclopedia/RiemannianMetric.html (237 words) 
