@article{ELA_2001__8__a1,
     author = {Pati, Sukanta},
     title = {The third smallest eigenvalue of the {Laplacian} matrix},
     journal = {The electronic journal of linear algebra},
     pages = {128--127},
     publisher = {mathdoc},
     volume = {8},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2001__8__a1/}
}