As a result of an Erasmus+ project financed by the EU Commission, we have now published a research paper on the benefits of inquiry-based learning. We investigate soft skill and hard skill development in students who participated in YPT-style physics competitions. There is a large group of co-authors, and you can find the paper here: https://iopscience.iop.org/article/10.1088/1361-6404/adedd6/meta.