Van Heijenoort, Jean2020-07-301980Van Heijenoort, Jean. 1980. The history of Trotsky's papers. Harvard Library Bulletin XXVIII (3), July 1980: 291-298.0017-8136https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37364182en-USJournal Article2020-07-30