The following publications are possibly variants of this publication:
- Extremal polyphenyl chains concerning k-matchings and k-independent setsShuhua Li, Hong Bian, Fuji Zhang, Guoping Wang. arscom, 96, 2010.
- Extremal polygonal cactus chain concerning k-independent setsHong Bian, Fuji Zhang, Guoping Wang, Haizheng Yu. arscom, 98:167-172, 2011.