Martina Duerauer

Harnessing the power of volunteers, the internet and Google Earth to collect and validate global spatial information using Geo-Wiki

Steffen Fritz, Ian McCallum, Christian Schill, 2015 .

Combining expert-based and crowd-sourcing in a two-tier sampling design for validation: global experimental results for cropland maps

Olivier Leo, Linda See, François Waldner, 2017 .

Picture Pile: A citizen-powered tool for rapid post-disaster damage assessments

Steffen Fritz, Linda See, Tobias Sturn, 2017 .