Every Planar Map Is Four Colorable by Kenneth I Appel, Wolfgang Haken
| ISBN: | 9780821851036 |
| Publication date: | 30th December 1989 |
| Author: | Kenneth I Appel, Wolfgang Haken |
| Publisher: | American Mathematical Society |
| Format: | Paperback |
| Pagination: | 741 pages |
| Series: | Contemporary Mathematics |
| Genres: |
Discrete mathematics Combinatorics and graph theory Mathematics |