* Allen Hatcher: "Notes on Basic 3-Manifold Topology" 2000*J. Isenberg, M. Jackson, "Ricci flow of locally homogeneous geometries on a Riemannian manifold", J. Diff.
* Allen Hatcher: "Notes on Basic 3-Manifold Topology" 2000* J. Isenberg, M. Jackson, "Ricci flow of locally homogeneous geometries on a Riemannian manifold", J. Diff.