00979nam0-22003371i-450-99000100458040332120040630144848.0000100458FED01000100458(Aleph)000100458FED0100010045820001205d1965----km-y0itay50------baengStructural modelsan introduction to the theory of direct graphsFrank Harary, Robert Z. Norman, Dorwin CartwrightNew YorkJohn Wiley1965Geometria algebricaTopologiaTopologia algebricaSistemi dinamiciFrattali matematici513Harary,Frank7983Cartwright,Dorwin47547Norman,Robert Z.47548ITUNINARICAUNIMARCBK99000100458040332111-054F5471FI1FI1Structural models354579UNINA