Röthel, Anne MPI for Comparative and International Private Law, Max Planck Society;
https://doi.org/10.1515/jura-2014-0055 (全文テキスト(全般))
Röthel, A. (2014). Testamentsformen. JURA – Juristische Ausbildung, 475-482. doi:10.1515/jura-2014-0055.