other suitable id-related templates: {{doi}}, {{US patent}}
url: URL of a copy of the article, if available online.
format: Format, i.e. PDF. Don't specify for HTML (implied as default).
access-date: Full date when URL was accessed, in ISO 8601 YYYY-MM-DD format, eg. 2006-02-17.
lang: Language of the source. Shows the language of the citation in parentheses and changes the abbreviation of “page”. For Belorussian, it should generally be omitted, unless it's necessary to explicitly indicate that the language is Belorussian.