- Karl Popper (Rowohlts Monographien) by Manfred Geier, 1994
- Karl Popper. by Martin Morgenstern, Robert Zimmer, 2002-05-01
- An Introduction To The Thought Of Karl Popper by Roberta Corvi, 1996-12-04
- Science and the Open Society : The Future of Karl Popper's Philosophy by Mark Amadeus Notturno, 2000-02
- Karl Popper: Philosophy and Problems (Royal Institute of Philosophy Supplements) by Anthony O'Hear, 1996-03-29
- The Philosophy of Karl Popper. Part II (Book 2) [Library of Living Philosophers Volume XIV Book II] by Karl Popper, 1974
- Karl Popper (Arguments of the Philosophers) by Anthony O'Hear, Anthony Oohear, 1982-11
- Lesson of this Century : With Two Talks on Freedom and the Democratic State by Karl Popper, 2000-05
- The Poverty Of Historicism by Karl R. Popper, 1961
- The Poverty of Historicism by Karl R. Popper, 1963
- The Open Society and Its Enemies, Vol. 2, The High Tide of Prophecy: Hegel, Marx, and the Alternatives by Karl R. Popper, 1962
- Karl R. Popper (Kopfe des 20. Jahrhunderts) by Wilhelm Baum, Kay E. Gonzalez, 1994
- Rationalitat und Theoriebildung: Studien zu Karl R. Poppers Methodologie der Sozialwissenschaften (Series in the philosophy of Karl R. Popper and critical rationalism) by Michael Schmid, 1996-01
- Karl Poppers kritischer Rationalismus. by Karl R. Popper, Ingo Pies, et all 1999-10-01
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