🌐EnglishEnglishDeutschРусский中文日本語EntityQ5251835· pop 6· linked from 13 articlesdegree diameter problemproblem in graph theoryAvailable in 6 languages中文日本語РусскийHungarianUkrainianvia Wikidata sitelinks · CC0ConnectionsMoore graphEntitydigital object identifierEntityCategoriesComputational problems in graph theoryGraph distance