Changes to 97/527/EC: Commission Decision of 9 July 1997 on a common technical regulation for the telephony application requirements for public pan-European cellular digital land-based mobile communications (Edition 2)
EU Decision 1997/527
The legislation that changes 97/527/EC: Commission Decision of 9 July 1997 on a common technical regulation for the telephony application requirements for public pan-European cellular digital land-based mobile communications (Edition 2), newest first. Choose one to see each change.
From legislation.gov.uk's record of changes, the official one: see it there.