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008 991025s1998    us            ||| | eng  
020   $a0387984976
035   $ab10774233-39ule_inst
035   $aLE01304157$9ExL
040   $aDip.to Matematica$beng
082 0 $a511.5
084   $aAMS 01A55
084   $aAMS 01A60
084   $aAMS 05-03
084   $aQA618.12.F513
100 1 $aFritsch, Rudolf$059362
245 14$aThe four color theorem :$bhistory, topological foundations and idea of proof /$cRudolf Fritsch, Gerda Fritsch
260   $aNew York :$bSpringer-Verlag,$cc1998
300   $axvi, 260 p. :$bill. ;$c24 cm.
500   $aIncludes bibliographical references (p. 231-247) and index
650  4$aFour-color problem
700 1 $aFritsch, Gerda$eauthor$4http://id.loc.gov/vocabulary/relators/aut$0725821
740 4 $aDer Vierfarbensatz
907   $a.b10774233$b21-09-06$c28-06-02
912   $a991000908689707536
945   $aLE013 05-XX FRI11 (1998)$g1$i2013000117690$lle013$o-$pE0.00$q-$rl$s-  $t0$u3$v0$w3$x0$y.i10873004$z28-06-02
996   $aFour color theorem$91455589
997   $aUNISALENTO
998   $ale013$b01-01-99$cm$da  $e-$feng$gus $h4$i1