MathSciNet bibliographic data

MR1152227 (93d:57032) 57N10 (20F05 57M05 57M10 57M35) Poénaru, V. Almost convex groups, Lipschitz combing, and $\pi\sp \infty\sb 1$ for universal covering spaces of closed $3$-manifolds. J. Differential Geom. 35 (1992), no. 1, 103--130.

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