@articleSoyka_Schaper_Bender_Striewe_Ullrich_2022, title=Toward a Competence Model for Graphical Modeling, volume=23, DOI=10.1145/3567598, number=115, journal=ACM Transactions on Computing Education, publisher=Association for Computing Machinery, author=Soyka, Chantal and Schaper, Niclas and Bender, Elena and Striewe, Michael and Ullrich, Meike, year=2022