Official specification
From ADC Project
For the official specification of the latest version of ADC, currently at 1.0, go here.
You're also probably interested in the official Category:Extensions
For previous versions of the specification, go here.
For the official specification of the latest version of ADC, currently at 1.0, go here.
You're also probably interested in the official Category:Extensions
For previous versions of the specification, go here.