- Author: Popper Péter
- Language: Hungarian
- Year: 2012
- Author: Karl Popper, Jorgen Mejer, Arne Petersen
- Language: English
- Year: 2013
Lélekrágcsálók
pdf
- Author: Popper Péter
- Language: Hungarian
- Year: 2010
- Author: Helmut Popper
- Language: English
- Year: 2021
- Author: Karl R. Popper
- Language: Serbian
- Year: 2002
- Author: Sir Karl Raimund Popper
- Language: French
- Year: 1999
科学发现的逻辑后记
pdf
- Author: 卡尔·波普尔 (Karl Popper)
- Language: Chinese
- Year: 2014
- Author: Karl R. Popper & Konrad Lorenz
- Language: Spanish
- Author: Helmut H. Popper
- Language: English
- Year: 2021