Are referendum results binding?

Federal law “On Basic Guarantees of Electoral Rights and the Rightof Citizens of the Russian Federation to Participate in a Referendum” (as amended on September 27, December 24, 2002; June 23,July 4, 2003)

http://www.legislationline.org/documents/id/4170 

Article 73. Legal Effect ofDecision Adopted at Referendum

1.A decision adopted at a referendum shall be binding and shall not need anyadditional approval.

2.A decision adopted at a referendum of the Russian Federation shall have effectin the entire territory of the Russian Federation.

3.A decision adopted at a referendum of a subject of the Russian Federation shallhave effect on the territory of this subject of the Russian Federation.