@article{CMJ_2010_60_3_a7,
     author = {Guo, Ji-Ming and Feng, Lin and Zhang, Jiong-Ming},
     title = {On the multiplicity of {Laplacian} eigenvalues of graphs},
     journal = {Czechoslovak Mathematical Journal},
     pages = {689--698},
     year = {2010},
     volume = {60},
     number = {3},
     mrnumber = {2672410},
     zbl = {1224.05297},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2010_60_3_a7/}
}