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EVERY PLANAR MAP IS FOUR COLORABLE
Author(s) -
Wilson Robin J.
Publication year - 1991
Publication title -
bulletin of the london mathematical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.396
H-Index - 48
eISSN - 1469-2120
pISSN - 0024-6093
DOI - 10.1112/blms/23.1.89
Subject(s) - mathematics , planar , geometry , combinatorics , computer graphics (images) , computer science
By K. Appel and W. Haken: 741 pp., US $80.00, ISBN 0 821 85103 9 (American Mathematical Society, 1989.)