The core of secondary level quantum education: a multi-stakeholder perspective Avraham Merzel, Philipp Bitzenbauer, Kim Krijtenburg-Lewerissa, Kirsten Stadermann, Erica Andreotti, Daria Anttila, Maria Bondani, Maria Luisa (Marilù) Chiofalo, Sergej Faletič, Renaat Frans et al. (11 more) EPJ Quantum Technol., 11 1 (2024) 27 Published online: 08 April 2024 DOI: 10.1140/epjqt/s40507-024-00237-x