@article{10_37236_659,
     author = {C. Dalf\'o and M. A. Fiol and E. Garriga},
     title = {A differential approach for bounding the index of graphs under perturbations},
     journal = {The electronic journal of combinatorics},
     year = {2011},
     volume = {18},
     number = {1},
     doi = {10.37236/659},
     zbl = {1235.05086},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/659/}
}