@article{10_37236_314, author = {Jianfeng Wang and Francesco Belardo and Qiongxiang Huang and Enzo M. Li Marzi}, title = {Spectral characterizations of dumbbell graphs}, journal = {The electronic journal of combinatorics}, year = {2010}, volume = {17}, doi = {10.37236/314}, zbl = {1215.05107}, url = {http://geodesic.mathdoc.fr/articles/10.37236/314/} }