🌐EnglishEnglishEspañolItalianoTürkçeРусскийالعربية中文EntityQ2279929· pop 9· linked from 9 articlesLommel functionphysics function introduced by Eugen von LommelAvailable in 9 languagesEspañol中文РусскийItalianoCatalanRomanianTürkçeUkrainianvia Wikidata sitelinks · CC0ConnectionsBessel functionEntityInternational Standard Book NumberEntityCategoriesOrdinary differential equationsSpecial functionsTemplate SpringerEOM with broken ref