A while ago, in USSR there were published two very voluminous collections entitled "Mathematics in USSR for 30 years. 1917-1947" and "Mathematics in USSR for 40 years. 1917-1957". These collections featured surveys for various fields of mathematics (algebra, differential equations, etc.) as well as biographical and bibliographical data of virtually all Soviet mathematicians of that time.
Throughout the book by A.D. Myshkis, "Soviet mathematicians. My reminiscences", URSS, Moscow, 2007 (in Russian), it is mentioned several times that even a more voluminous "Mathematics in USSR. 1958-1967" was planned, on which circa 200 people worked. However, writes Myshkis, the publication was blocked on a rather later stage by a group of "influential members of USSR Academy of Sciences" who were not happy how their research is reflected in those surveys. And indeed, only the second volume of "Mathematics in USSR. 1958-1967" was published, containing biographical and bibliographical data.
Who blocked this publication? (At one place, Myshkis mentions the name of Pontryagin, though rather equivocally).