00308nam a2200133Ia 45000030006000000080041000060400015000471000029000622450035000912500010001262600009001365460012001450050017001570STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aHarary, F.; Jacobson, N.  aGraph theory and basis Algebra  aFirst  c1994  aEnglish20220125165922.0