共 50 条
- [42] Genus Distributions of 4-Regular Outerplanar Graphs ELECTRONIC JOURNAL OF COMBINATORICS, 2011, 18 (01):
- [47] Vertex Cover on 4-regular hyper-graphs is hard to approximate within 2-ε 17TH ANNUAL IEEE CONFERENCE ON COMPUTATIONAL COMPLEXITY, PROCEEDINGS, 2002, : 6 - 6