Kohler, Hans-Peter; Kohler, Iliana (2002). «Fertility Decline in Russia in the Early and Mid 1990s: The Role of Economic Uncertainty and Labour Market Crises». European Journal of Population18: 233–262. doi:10.1023/A:1019701812709.
The On paper, the Russian SFSR had the constitutional right to "freely secede from the Soviet Union" (art. 69 of the RSFSR Constitution, art. 72 of the USSR Constitution), but according to USSR laws 1409-I (enacted on April 3, 1990) and 1457-I[νεκρός σύνδεσμος] (enacted on April 26, 1990) this could be done only by referendum with two-thirds of all registered voters supporting it. No special referendum on the secession from the USSR was held in the Russian SFSR
The On paper, the Russian SFSR had the constitutional right to "freely secede from the Soviet Union" (art. 69 of the RSFSR Constitution, art. 72 of the USSR Constitution), but according to USSR laws 1409-I (enacted on April 3, 1990) and 1457-I[νεκρός σύνδεσμος] (enacted on April 26, 1990) this could be done only by referendum with two-thirds of all registered voters supporting it. No special referendum on the secession from the USSR was held in the Russian SFSR