@article{10_37236_2043,
     author = {Yi-Zheng Fan and Gui-Dong Yu and Yi Wang},
     title = {The chromatic number and the least eigenvalue of a graph},
     journal = {The electronic journal of combinatorics},
     year = {2012},
     volume = {19},
     number = {1},
     doi = {10.37236/2043},
     zbl = {1243.05146},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/2043/}
}