APA (7th ed.) Citation

Jokar Arsanjani, J., & Zipf, A. (2015). An exploration of future patterns of the contributions to OpenStreetMap and development of a contribution index. Transactions in GIS, 19(6), . https://doi.org/10.1111/tgis.12139

Chicago Style (17th ed.) Citation

Jokar Arsanjani, Jamal, and Alexander Zipf. "An Exploration of Future Patterns of the Contributions to OpenStreetMap and Development of a Contribution Index." Transactions in GIS 19, no. 6 (2015). https://doi.org/10.1111/tgis.12139.

MLA (9th ed.) Citation

Jokar Arsanjani, Jamal, and Alexander Zipf. "An Exploration of Future Patterns of the Contributions to OpenStreetMap and Development of a Contribution Index." Transactions in GIS, vol. 19, no. 6, 2015, https://doi.org/10.1111/tgis.12139.