🌐EnglishEnglishDeutschFrançaisItalianoРусский한국어中文日本語EntityQ39325· pop 10· linked from 53 articlesBorn approximationscattering theoryAvailable in 10 languagesFrançaisDeutsch中文日本語РусскийItalianoHebrewUkrainian한국어via Wikidata sitelinks · CC0Connectionsperturbation theoryEntityquantum mechanicsEntityCategories1926 introductionsMax BornPerturbation theoryScattering theory