Quorum requirements for a referendum to be valid

Belarus
- Mandatory referendum - turnout quorum
- Optional referendum - turnout quorum
ELECTORAL CODE OF THE REPUBLIC OF BELARUS (with amendments in 2011)
Electoral Code of Belarus
Article 121. Finalisation ofReferendum Results
[?]
The referendum shall be consideredas held if more than a half of the citizens included in the lists of citizens,having the right to take part in the referendum, have taken part in the vote. [?]
Vote of more than 50% of eligible voters is required.