Comparison of spatiotemporal contribution patterns among three crowd-sourcing drone platforms. - Ammar Mandourah; Hartwig H. Hochmair (J. Locat. Based Serv., 2021)

Analyzing the violation of drone regulations in three VGI drone portals across the US, the UK, and France. - Ammar Mandourah; Hartwig H. Hochmair (Geo spatial Inf. Sci., 2024)

Analysing the use of OpenAerialMap images for OpenStreetMap edits. - Ammar Mandourah; Hartwig H. Hochmair (Geo spatial Inf. Sci., 2025)