🌐EnglishEnglishDeutschEspañolFrançaisNederlandsPolskiPortuguêsTiếng ViệtРусский한국어中文日本語EntityQ1135706· pop 12· linked from 6 articlesHarnack's principletheoremConnectionsHarnack's inequalityEntityInternational Standard Book NumberEntityCategoriesHarmonic functionsMathematical principlesTheorems in complex analysis