C. J. Cieszewski, «Solutions to the Base-Age Variant Models», Math. Comput. For. Nat. Res. Sci., vol. 15, fasc. 1, pp. 18–24 (7), apr. 2023, Consultato: nov. 05, 2026. Disponibile su: https://mcfns.com/index.php/Journal/article/view/15.3