Explainability Needs in Human-Robot Collaboration: A Qualitative Interaction Study on the When, What, and How of Cobot Explanations. - Verena Szojak; Ouijdane Guiza; Markus Jäger 003; Markus Brillinger; Martin Schobesberger; Martina Mara; Kathrin Meyer; Sandra Maria Siedl (HRI Companion, 2026)