Schindler-Tschirner, S., & Schindler, W. (2023). Mathematical Stories II - Recursion, Divisibility and Proofs: For Gifted Students in Primary School (1st ed. 2023.). Springer Fachmedien Wiesbaden : Imprint: Springer. https://doi.org/10.1007/978-3-658-38611-5
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Schindler-Tschirner, Susanne, و Werner Schindler. Mathematical Stories II - Recursion, Divisibility and Proofs: For Gifted Students in Primary School. 1st ed. 2023. Wiesbaden: Springer Fachmedien Wiesbaden : Imprint: Springer, 2023. https://doi.org/10.1007/978-3-658-38611-5.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Schindler-Tschirner, Susanne, و Werner Schindler. Mathematical Stories II - Recursion, Divisibility and Proofs: For Gifted Students in Primary School. 1st ed. 2023. Springer Fachmedien Wiesbaden : Imprint: Springer, 2023. https://doi.org/10.1007/978-3-658-38611-5.