Sabou, M., K. Käsznar, M. Zlabinger, S. Biffl, and D. Winkler. “Verifying Extended Entity Relationship Diagrams With Open Tasks”. Proceedings of the AAAI Conference on Human Computation and Crowdsourcing, vol. 8, no. 1, Oct. 2020, pp. 132-40, doi:10.1609/hcomp.v8i1.7471.