Lafargue, Paul (1842–1911)
Jaurès, Jean (1859–1914) Lafargue, Paul (1842–1911)
Kovalevskij, Maksim Maksimovič (1851–1916)
Giraud-Teulon, Alexis (1839–1916)
Angiolini, Alfredo (1874–1918)
Rudniański, Stefan (1887–1941)
Kautsky, Karl (1854–1938)
Domański, Henryk (1952– )
Domański, Henryk (1952– )
Domański, Henryk (1952– )
Haecker, Emil (1875–1934)