APA (7th ed.) Citation

Rudolph, K., & Wickert, C. (2018). In memoriam Helga Grebing. Metropol.

Chicago Style (17th ed.) Citation

Rudolph, Karsten, and Christl Wickert. In Memoriam Helga Grebing. Berlin: Metropol, 2018.

MLA (9th ed.) Citation

Rudolph, Karsten, and Christl Wickert. In Memoriam Helga Grebing. Metropol, 2018.

Warning: These citations may not always be 100% accurate.