Daniel Armin Đumić
Daniel Armin Đumić is a historian specialising in historical demography, quantitative historical research, and the digital processing of historical census data. His research interests include historical demography, diaspora studies, and the application of computational and quantitative methods to historical research, with a particular focus on Southeast Europe. His academic training also includes Ottoman history and palaeography. His research has contributed to the development of an internationally accessible database of digitised historical microdata. He was a collaborator in the project “Demography and Social Structures in Historical Southeast Europe,” where he contributed to the transcription, coding, harmonisation, and quality control of large-scale census datasets from Southeast Europe.

Siegfried Gruber
Siegfried Gruber is a researcher at the Section of Southeast European History and Anthropology, Department of History, University of Graz, where he received his doctoral degree in 2004. His main research topics are historical demography, aging, family history, patriarchal structures within Southeastern Europe, and European comparative studies. He is also active in building the Mosaic database, the largest database of historical census microdata for Southeastern Europe.