🌐EnglishEnglishNederlandsРусский한국어日本語EntityQ289610· pop 7· linked from 15 articlesoscillation theoryAvailable in 7 languages日本語РусскийBelarusianBosnianChuvashUkrainianvia Wikidata sitelinks · CC0ConnectionsmathematicsEntityInternational Standard Book NumberEntityCategoriesOrdinary differential equations