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. 17 Jan. 2020.
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 January 17, 2020, 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 January 17, 2020. 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 = 17 January 2020
| ref = {{harvid|Maas|2019}}
}}
