- Author: Richard A. Easterlin
- Language: English
- Year: 2021
- Author: Pekka J. Korhonen Jyrki Wallenius
- Language: English
- Year: 2020
- Author: Julia Puaschunder
- Language: English
- Year: 2020
- Author: Stefan Nothelfer
- Language: English
- Year: 2020
- Author: Markus Husemann-Kopetzky
- Language: German
- Year: 2020
- Author: Eduard Lukschandl
- Language: German
- Year: 2020
- Author: Florian Tellge
- Language: German
- Year: 2020
- Author: Kevin Kinne
- Language: German
- Year: 2020