00366nam a2200133Ia 4500003000400000008004100004020002200045040000800067100002100075245008300096260002900179300001200208365001200220LDD181029s9999    xx            000 0 und d  a387986545cE74.95  cLDD  aBulman, George w 0aSymmetry and Integration Methods for Differenantial EquationscGeorge w Bulman  aNew YorkbSpringerc2002  ax,419p.  bE 74.95