🌐EnglishEnglishEspañolFrançaisSvenskaEntityQ3527004· pop 5· linked from 8 articlesBEST theoremformula used in graph theoryAvailable in 5 languagesEspañolFrançaisCatalanSvenskavia Wikidata sitelinks · CC0ConnectionsNicolaas Govert de BruijnEntityTatyana Pavlovna EhrenfestEntityCategoriesDirected graphsTheorems in graph theory