「In Memory of René Marek Cieszewski」, Math. Comput. For. Nat. Res. Sci., vol. 4, no. 1, pp. Pages: 1–1 (1), 2月 2012, 参照: 2026年9月4日. [Online]. 入手先: https://v3.mcfns.com/index.php/Journal/article/view/MCFNS.4%3A1