00344nam a2200145 a 450000500170000002000180001708200130003510000320004824500400008026000290012030000290014960000080017885600060018685600060019220251219160004.0  a9783111060699  a511bELE  aDiekert, Volker [et.al.]d_  aElements of discrete mathematicsb_  aBerlinbDe Gruyterc2024  aviii, 261 p.b22 cm.bPB  bc_  f_  a_