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trotsky and background trotsky and biography trotsky and education trotsky and role and 1917 trotsky and commissar trotsky death lenin trotsky historiography
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( … or …)
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trotsky and (background or life or biography or education) trotsky and capture and bridge trotsky and (ideals or ideology or philosophy) trotsky and (mrc or “military revolutionary committee”) trotsky (assassinat* or death or kill*) trotsky (critique or significan*) trotsky (expulsion or expelled) “zimmerwald conference” or “third zimmerwald conference” or “international socialist conference at zimmerwald”
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trotsky politic* role trotsky terror* trotsky (attack or critic* or writing or letter or correspond*) stalin* trotsky socialis* lenin (successor or follow*)
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“… ... …”
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trotsky and “political role” trotsky and “1917 revolution” trotsky and “military revolutionary committee” trotsky and “commissar for war” trotsky and “treaty of brest” trotsky “propaganda train” trotsky (“power struggle” or faction) trotsky “red army” Trotsky “fourth international” trotsky “permanent revolution” concept trotsky (expel* or expulsion) “communist party”
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Apply these search strategies in the below online databases - these are key resources for your study