The following publications are possibly variants of this publication:
- Geometric permutations of balls with bounded size disparityYunhong Zhou, Subhash Suri. cccg 2001: 177-180 [doi]
- Geometric permutations of balls with bounded size disparityYunhong Zhou, Subhash Suri. comgeo, 26(1):3-20, 2003. [doi]
- Geometric permutations of disjoint translates of convex setsMeir Katchalski, Ted Lewis, A. Liu. DM, 65(3):249-259, 1987. [doi]
- A Helly-Type Theorem for Line Transversals to Disjoint Unit BallsAndreas Holmsen, Meir Katchalski, Ted Lewis. dcg, 29(4):595-602, 2003. [doi]