Rohlfing, IngoSchneider, Carsten Q.2023-10-202023-10-2020131938-274X10.5281/zenodo.4589400http://hdl.handle.net/20.500.14018/14155engCC BY-NC-ND 4.0https://creativecommons.org/licenses/by-nc-nd/4.0/Improving research on necessary conditions: Formalized case selection for process tracing after QCAJournal article