| Chapter title: | Problém čtyř barev, barvení grafů, rovinné grafy (Czech) | 
| Chapter title: | Four-colour problem, colouring, planar graphs (English) | 
| Author: | Šišma, Pavel | 
| Language: | Czech | 
| Monograph: | Teorie grafů, 1736–1963 | 
| ISBN: | 80-7196-065-9 | 
| Year: | 1997 | 
| Publisher: | Prometheus | 
| Place: | Praha | 
| Pages: | 51-69 | 
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| Category: | math | 
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| Date available: | 2010-11-06T22:57:03Z | 
| Stable URL: | http://hdl.handle.net/10338.dmlcz/400870 | 
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| Files | Size | Format | View | 
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| DejinyMat_08-1997-1_7.pdf | 390.2Kb | application/pdf | View/ |