Link to the approved committee specification
HTML: http://docs.oasis-open.org/dita/v1.2/cs01/spec/DITA1.2-spec.html (Authoritative version)
PDF: http://docs.oasis-open.org/dita/v1.2/cs01/spec/DITA1.2-spec.pdf
CHM: http://docs.oasis-open.org/dita/v1.2/cs01/spec/DITA1.2-spec-chm.zip
DITA: http://docs.oasis-open.org/dita/v1.2/cs01/spec/DITA1.2-spec.zip