Template:Citation Style documentation/registration

Main article: WP:PAYWALL

These parameters add a link note to the end of the citation:

• registration: For online sources that require registration, set |registration=yes (or y, or true); superseded by subscription if both are set.
• subscription: For online sources that require a subscription, set |subscription=yes (or y, or true); supersedes registration if both are set.

Setting |registration= or |subscription= to any value other than y, yes, or true will generate an error message.