Langeveld, Martin. "Wolfram Alpha and other ways to enhance database journalism." Nieman Journalism Lab. Nieman Foundation for Journalism at Harvard, 11 May. 2009. Web. 1 Jun. 2023.
APA
Langeveld, M. (2009, May. 11). Wolfram Alpha and other ways to enhance database journalism. Nieman Journalism Lab. Retrieved June 1, 2023, from https://www.niemanlab.org/2009/05/wolfram-alpha-other-ways-enhance-database-journalism/
Chicago
Langeveld, Martin. "Wolfram Alpha and other ways to enhance database journalism." Nieman Journalism Lab. Last modified May 11, 2009. Accessed June 1, 2023. https://www.niemanlab.org/2009/05/wolfram-alpha-other-ways-enhance-database-journalism/.
Wikipedia
{{cite web
| url = https://www.niemanlab.org/2009/05/wolfram-alpha-other-ways-enhance-database-journalism/
| title = Wolfram Alpha and other ways to enhance database journalism
| last = Langeveld
| first = Martin
| work = [[Nieman Journalism Lab]]
| date = 11 May 2009
| accessdate = 1 June 2023
| ref = {{harvid|Langeveld|2009}}
}}
