01074nam a2200289 i 4500991001586809707536030505s2002 enka b 001 0 eng d0198510624b12168476-39ule_instDip.to Matematicaeng511.5LC QA612.19.W55AMS 05CWilson, Robert26133Graphs, colourings, and the four-colour theorem /Robert A. WilsonOxford ;New York :Oxford University Press,2002viii, 141 p. :ill. ;24 cmOxford science publicationsIncludes bibliographical references (p. 136-138) and indexFour-color problemGraph theory.b1216847621-09-0605-05-03991001586809707536LE013 05C WIL21 (2002)12013000138497le013pE30.03-l- 05150.i1250952806-05-03Graphs, colourings, and the four-colour theorem145267UNISALENTOle01305-05-03ma -engenk01