APA (7th ed.) Citation

Richter, G., Bellmann, L., Tisch, A., & Hasselhorn, H. M. Retirement age: Create good conditions! Sciendo.

Chicago Style (17th ed.) Citation

Richter, Götz, Lutz Bellmann, Anita Tisch, and Hans Martin Hasselhorn. Retirement Age: Create Good Conditions! Sciendo.

MLA (9th ed.) Citation

Richter, Götz, et al. Retirement Age: Create Good Conditions! Sciendo.