• 1 Memorial Library
• 1 Special Collections (Memorial Library)

• 6 Books

• 4 Communists
• 4 Correspondence
• 2 Communism
• 2 History
• 2 Women communists
• 1 Jewish communists
• 1 Jogiches, Leo, 1867-1919
• 1 Kautsky, Karl, 1854-1938
• 1 Kautsky, Luise Ronsperger, 1864-1944
• 1 Liebknecht, Sophie
• 1 Liebknecht, Sophie, 1884-1964
• 1 Socialism
• 1 Socialists
• 1 Women political prisoners

• 6 Luxemburg, Rosa, 1871-1919
• 2 Adler, Georg (Editor of the Letters of Rosa Luxemburg)
• 2 Hudis, Peter
• 2 Laschitza, Annelies
• 1 Digitalia (Firm)
• 1 Gutiérrez Álvarez, José, 1946-
• 1 Kautsky, Karl, 1854-1938
• 1 Kautsky, Luise Ronsperger, 1864-1944
• 1 Lugones, Susana, 1925-1978
• 1 Mazo, Ricardo
• 1 Paul, Cedar
• 1 Paul, Eden, 1865-1944
• 1 Rosa-Luxemburg-Stiftung
• 1 Shriver, George
• 1 Young Communist International. Executive Committee

• 3 English
• 2 German
• 1 Spanish

• 1 Personal correspondence

Limit year range