A Citizen Science Approach for Collecting Toponyms. - Aji Putra Perdana; Frank O. Ostermann (ISPRS Int. J. Geo Inf., 2018)

Eliciting Knowledge on Technical and Legal Aspects of Participatory Toponym Handling. - Aji Putra Perdana; Frank O. Ostermann (ISPRS Int. J. Geo Inf., 2019)