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Geometric permutations of disjoint unit spheres Cheong, Otfried; Goaoc, X; Na, HS, COMPUTATIONAL GEOMETRY-THEORY AND APPLICATIONS, v.30, pp.253 - 270, 2005-03 |
Helly-type theorems for line transversals to disjoint unit balls Cheong, Otfried; Goaoc, Xavier; Holmsen, Andreas F; Petitjean, Sylvain, DISCRETE & COMPUTATIONAL GEOMETRY, v.39, pp.194 - 212, 2008-03 |
Lines Pinning Lines Aronov, Boris; Cheong, Otfried; Goaoc, Xavier; Rote, Guenter, DISCRETE COMPUTATIONAL GEOMETRY, v.45, no.2, pp.230 - 260, 2011-03 |
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