Historiography
In Soviet historiography, it was claimed that the method was introduced upon the initiative of a Zavyalovo village in Novosibirsk okrug, and the term Zavyalovo Method was in use for some time. On March 22 1929 the newspaper Soviet Siberia informed about the "Zavialovo initiative" and called for spreading it to other places. It is suggested that this publication was propaganda cover-up of the March 20 decision of Politburo.
In western historiography, while the overall idea was presented correctly, different versions of the chronology of events have been published, due to lack of documentary sources. In particular, some works say that the method was first introduced in Siberia, and only later in Urals. Additional information became available after the dissolution of the Soviet Union, which allowed to clarify the course of the events.
Read more about this topic: Ural-Siberian Method