The following publications are possibly variants of this publication:
- Triangle-Free Planar Graphs as Segments Intersection GraphsNatalia de Castro, Francisco Javier Cobos, Juan Carlos Dana, Alberto Márquez, Marc Noy. gd 1999: 341-358 [doi]
- Planar segment visibility graphsHazel Everett, Chính T. Hoàng, Kyriakos Kilakos, Marc Noy. comgeo, 16(4):235-243, 2000.
- Planar segment visibility graphsHazel Everett, Chính T. Hoàng, Kyriakos Kilakos, Marc Noy. cccg 1997: