D. Brélaz, New methods to color the vertices of a graph, Communications of the ACM, vol.22, issue.4, pp.251-256, 1979.
DOI : 10.1145/359094.359101

C. T. Cheng, A. Dumitrescu, and P. J. Schroeder, Generating small combinatorial test suites to cover input-output relationships, Third International Conference on Quality Software, 2003. Proceedings., pp.76-82, 2003.
DOI : 10.1109/QSIC.2003.1319088

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

E. Halperin, Improved Approximation Algorithms for the Vertex Cover Problem in Graphs and Hypergraphs, SIAM Journal on Computing, vol.31, issue.5, pp.1608-1623, 2002.
DOI : 10.1137/S0097539700381097

K. J. Hayhurst, D. S. Veerhusen, J. J. Chilenski, and L. K. Rierson, A practical tutorial on modified condition/decision coverage, 2001.
DOI : 10.1109/dasc.2001.963305

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

G. Karakostas, L. Caires, G. F. Italiano, L. Monteiro, C. Palamidessi et al., A Better Approximation Ratio for the Vertex Cover Problem, Lecture Notes in Computer Science, vol.3580, pp.1043-1050, 2005.
DOI : 10.1007/11523468_84

S. Khot and O. Regev, Vertex cover might be hard to approximate to within 2-??, 18th IEEE Annual Conference on Computational Complexity, 2003. Proceedings., pp.335-349, 2008.
DOI : 10.1109/CCC.2003.1214437

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

J. Mccaffrey, Pairwise testing with QICT, MSDN Magazine, vol.29, issue.12, pp.28-35, 2009.

S. Raaphorst, L. Moura, and B. Stevens, A construction for strength-3 covering arrays from linear feedback shift register sequences, Designs, Codes and Cryptography, vol.73, issue.3, pp.949-968, 2014.
DOI : 10.1007/s10623-013-9835-2

K. Tai and Y. Lei, A test generation strategy for pairwise testing, IEEE Trans. Software Eng, vol.28, issue.1, pp.109-111, 2002.

S. Vilkomir and D. Anderson, Improving IPOG's vertical growth based on a graph coloring scheme Verification and Validation Workshops, 8th IEEE International Conference on Software Testing, pp.1-8, 2015.

S. Vilkomir and D. Anderson, Relationship between pair-wise and MC/DC testing: Initial experimental results, 2015 IEEE Eighth International Conference on Software Testing, Verification and Validation Workshops (ICSTW), 2015.
DOI : 10.1109/ICSTW.2015.7107439