APA (7th ed.) Citation

Jonietz, D., & Zipf, A. (2017). Highlighting current trends in volunteered geographic information. ISPRS International Journal of Geo-Information, 6(7), . https://doi.org/10.3390/ijgi6070202

Chicago Style (17th ed.) Citation

Jonietz, David, and Alexander Zipf. "Highlighting Current Trends in Volunteered Geographic Information." ISPRS International Journal of Geo-Information 6, no. 7 (2017). https://doi.org/10.3390/ijgi6070202.

MLA (9th ed.) Citation

Jonietz, David, and Alexander Zipf. "Highlighting Current Trends in Volunteered Geographic Information." ISPRS International Journal of Geo-Information, vol. 6, no. 7, 2017, https://doi.org/10.3390/ijgi6070202.