Home›Authentication methods›부서🌐한국어EnglishBahasa IndonesiaDeutschFrançaisItalianoNederlandsPolskiSvenskaРусскийالعربية한국어中文日本語EntityQ1340770· pop 19· linked from 88 articles부서Also known as Countersigningaddition of a second signature onto a documentAvailable in 19 languagesFrançaisDeutsch中文日本語РусскийItalianoالعربيةBulgarianCzechDanishKyrgyzConnectionslawEntityInternational Standard Book NumberEntityCategoriesAuthentication methodsLegal documents