Low-Degree Minimum Spanning Trees. G. Robins, J.S. Salowe (1995) Discrete & computational geometry
Lower Bounds for the Numbers of Antipodal Pairs and Strictly Antipodal Pairs of Vertices in a Convex Polytope. V. Soltan, Mahn Hung Nguyen (1994) Discrete & computational geometry
Lower-Bound Theorems for Pseudomanifolds. Tiong-Seng Tay (1995) Discrete & computational geometry