00799nam0-22002891i-450-990001143120403321000114312FED01000114312(Aleph)000114312FED0100011431220000920d1979----km-y0itay50------baengSpectra of GraphsTheory and Applicationby Cvetkovic,Doob and SachsNew York [etc.]Academic Press1979Pure and applied mathematics87Cvetkovic,Dragos M.40909Doob,M.Sachs,HorstITUNINARICAUNIMARCBK990001143120403321C-27-(8721461MA1MA1Spectra of Graphs344047UNINAING01