@Article{isprs-annals-XI-4-2026-69-2026,
AUTHOR = {Collmar, D. and Walter, V. and S\"orgel, U. and Ullmann, R.},
TITLE = {Reproducing Geospatial Crowdsourcing: How Consistent Is the Crowd?},
JOURNAL = {ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences},
VOLUME = {XI-4-2026},
YEAR = {2026},
PAGES = {69--76},
URL = {https://isprs-annals.copernicus.org/articles/XI-4-2026/69/2026/},
DOI = {10.5194/isprs-annals-XI-4-2026-69-2026}
}