%0 Journal Article %A Nowakowski, Richard %A Rival, Ivan %T The Spectrum of a Finite Lattice: Breadth and Length Techniques %J Canadian mathematical bulletin %D 1977 %P 319-329 %V 20 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1977-049-0/ %R 10.4153/CMB-1977-049-0 %F 10_4153_CMB_1977_049_0