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Enzo Traverso -
John Reed -
Daniel Bensaïd -
Daniel Tanuro -
João Martins Pereira -
Cinzia Arruzza -
Ernest Mandel -
Leon Trotsky -
Rosa Luxemburgo -
Nikolai Bukharine -
Enrico Berlinguer -
Vladimir Lenine -
Grigory Zinoviev -
Roland Lew -
Pierre Rousset -
Amadeo Bordiga -
Jean-Marie Brohm -
Franz Mehring -
Charles-André Udry -
Livio Maitan - René Lefort
- Mieczyslaw Bortenstein
- Dave Bailey
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Norman Geras -
Helmut Dahmer -
Lev Vygotski -
Antonio Gramsci -
Tamara Volkova