01071nam a2200313 i 450099100090863970753620020507175642.0981130s1977 us ||| | eng 0070543828b10774221-39ule_instLE01304156ExLDip.to Matematicaeng511.5AMS 05CSaaty, Thomas L.14108The four-color problem :assaults and conquest /Thomas L. Saaty and Paul C. KainenNew York :McGraw-Hill International,c1977ix, 217 p. :ill. ;25 cm.Includes index.Bibliography: p. 197-211Four-color problemGraph theoryKainen, Paul C..b1077422121-09-0628-06-02991000908639707536LE013 05C SAA11 (1977)12013000104751le013-E0.00-l- 01010.i1087299128-06-02Four-color problem340522UNISALENTOle01301-01-98ma -engus 41