WIPRÄCHTIGER, Maja; STAHNS, Ruven; SCHURIG, Michael; RIEGLER, Susanne; HARCSA, Romana. Subject-specific quality profiles of spelling instruction in Germany and Switzerland. Swiss Journal of Educational Research, Bern, v. 45, n. 3, p. 228–241, 2023. DOI: 10.24452/sjer.45.3.1. Disponível em: https://sjer.ch/article/view/8843. Acesso em: 20 apr. 2025.