Retrieved 2012-04-07. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 "Decree of the Presidium of the Supreme Soviet of the USSR of July 18, 1980 № 2523-X" (in Russian). Legal Library of the USSR.