000 00458 a2200169 4500
020 _a0387984976
082 _a511.5
_bFRI
090 _c2390
_d2878
100 _aFritsch, Rudolf
245 _aThe four-color theorem
_bhistory, topological foundations, and idea of proof
260 _aNew York
_bSpringer
_c1994
_g1998
300 _axvi,260p.
_c24cm
650 _aGraph theory
700 _aPeschke, Julie - trans.
700 _aFritsch, Gerda
942 _cSR
999 _c31459
_d31459