「INGROWTH IMPUTATION IN EVEN-AGED PERMANENT SAMPLE PLOTS」, Math. Comput. For. Nat. Res. Sci., vol. 13, no. 2, pp. 1–4(4), 10月 2021, 参照: 10月 29, 2026. 入手先: https://mcfns.com/index.php/Journal/article/view/13.5