@article{JAC_2000__12_2_a3,
     author = {Galtman, A.},
     title = {Spectral characterizations of the {Lov\'asz} number and the {Delsarte} number of a graph},
     journal = {Journal of Algebraic Combinatorics},
     pages = {131--143},
     publisher = {mathdoc},
     volume = {12},
     number = {2},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2000__12_2_a3/}
}