an Entity references as follows:
This is a list of metro systems in that were built under the Soviet Union. There were 13 metro systems in 7 of Soviet republics. A 14th metro system the Dnipro Metro started construction in 1982 but due to financial difficulties was not opened until 1995. Other than in Dnipro, only two metro systems built in post-Soviet countries after the Union's dissolution are Kazan Metro in Russia (2005) and Almaty Metro in Kazakhstan (2011). Also the Volgograd Metrotram is a tram system with elements of the metro in Volgograd, opened on November 5, 1984.