[otrs] List of Tokens for Notifications

I'd like to do some customization of the OTRS notifications (specifically, Customer:OwnerChange). Is there a listing somewhere of the valid tokens that can be used in the notification e-mails (i.e., , , etc.)? I have looked through the manual, but can find no reference to the valid placeholder tokens beyond the ones in the default notifications and those in the example text shown on the update notifications admin screen. -Stephen