1. Lower bounds for induced forests in cubic graphs;Bondy;Canad. Math. Bull.,1987
2. Graph Theory with Applications;Bondy,1976
3. The rectilinear steiner tree problem is NP-complete;Garey;SIAM J. Appl. Math.,1977
4. J. Liu and C. Zhao, On the feedback vertex set in cubic graphs, submitted.
5. Bounds on feedback vertex sets of undirected cubic graphs;Speckenmeyer;Coll. Math. Soc. Janos Bolyai 42. Algebra, Combin. Logic Comput. Sci.,1986