00638nam0-22002411i-450-990001135570403321000113557FED01000113557(Aleph)000113557FED0100011355720000920d--------km-y0itay50------baengInteraction modelsby Biggs,N.L.Cambridge [etc.]Cambridge University PressBiggs,Norman40968ITUNINARICAUNIMARCBK990001135570403321C-9-(3019357MA1MA1Interaction models345194UNINAING01