@article{ZNSL_2011_395_a9,
     author = {L. Yu. Kolotilina},
     title = {Bounds for the extreme eigenvalues of the {Laplacian} and signless {Laplacian} of a~graph},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {104--123},
     publisher = {mathdoc},
     volume = {395},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2011_395_a9/}
}