Меню Главная Случайная статья Настройки Шаблон:Certification Table Entry/Sales/RussianPeriod Материал из https://ru.wikipedia.org This helper template calculates periods for Russian certifications, as stated in [1] It returns: Before September 2006 Before 2010 From 2010 1 2 3 Returns 0 if the data provided is not sufficient.