Asymptotics of Weil-Petersson geodesics I: ending laminations, recurrence and flows. (With Howard Masur and Yair Minsky). Geom. & Funct. Anal., **19** (2010), pp. 1229-1257.

Coarse and synthetic Weil-Petersson geometry: quasi-flats, geodesics, and relative hyperbolicity. (With Howard Masur). Geometry and Topology, **12** (2008), pp. 2453-2495.

Curvature and rank of Teichmüller space (with B. Farb). Amer. J. Math. **128** (2006), pp. 1-22.

Algebraic limits of geometrically finite manifolds are tame (with J. Souto). Geom. and Funct. Anal. **16** (2006)

On the density of geometrically finite Kleinian groups (with K. Bromberg). Acta Mathematica **192** (2004), pp. 33-93.

The classification of Kleinian surface groups II: the Ending Lamination Conjecture (with R. Canary and Y. Minsky, 2004). Submitted for publication.

The Weil-Petersson metric and volumes of 3-dimensional hyperbolic convex cores. J. Amer. Math. Soc. **16** (2003), pp. 495-535

Weil-Petersson translation distance and volumes of mapping tori. Comm. Anal. Geom. **11** (2003), pp. 987-999.

Tameness on the boundary and Ahlfors' measure conjecture (with K. Bromberg, R. Evans, and J. Souto). Publ. Math. I.H.É.S. **98** (2003), pp. 145-166

Pants decompositions and the Weil-Petersson metric. In Complex Manifolds and Hyperbolic Geometry, American Mathematical Society, Providence, RI, 2002, pp. 27-40.

Boundaries of Teichmüller spaces and end-invariants for hyperbolic 3-manifolds. Duke Math. J., **106** (2001), pp. 527-552.

Iteration of mapping classes and limits of hyperbolic 3-manifolds. Invent. Math. **143** (2001), pp. 523-570.

Continuity of Thurston's length function. Geom. & Funct. Anal. **10** (2000), pp. 741-797.

The standard double soap bubble in R^{2} uniquely minimizes perimeter (with F. Morgan et. al.). Pacific Journal of Mathematics, **159** (1993), no. 1, pp. 47-59.