Maas, David. "In Germany, focusing on this metric let a newspaper increase reader loyalty (and subscribers too)." Nieman Journalism Lab. Nieman Foundation for Journalism at Harvard, 12 Nov. 2019. Web. 19 Oct. 2021.
APA
Maas, D. (2019, Nov. 12). In Germany, focusing on this metric let a newspaper increase reader loyalty (and subscribers too). Nieman Journalism Lab. Retrieved October 19, 2021, from https://www.niemanlab.org/2019/11/in-germany-focusing-on-this-metric-let-a-newspaper-increase-reader-loyalty-and-subscribers-too/
Chicago
Maas, David. "In Germany, focusing on this metric let a newspaper increase reader loyalty (and subscribers too)." Nieman Journalism Lab. Last modified November 12, 2019. Accessed October 19, 2021. https://www.niemanlab.org/2019/11/in-germany-focusing-on-this-metric-let-a-newspaper-increase-reader-loyalty-and-subscribers-too/.
Wikipedia
{{cite web
| url = https://www.niemanlab.org/2019/11/in-germany-focusing-on-this-metric-let-a-newspaper-increase-reader-loyalty-and-subscribers-too/
| title = In Germany, focusing on this metric let a newspaper increase reader loyalty (and subscribers too)
| last = Maas
| first = David
| work = [[Nieman Journalism Lab]]
| date = 12 November 2019
| accessdate = 19 October 2021
| ref = {{harvid|Maas|2019}}
}}
