[1]
A. A. Ligun and A. A. Shumeiko, “On one problem of minimization of area”,
Ukr. Mat. Zhurn.
, vol. 49, no. 7, pp. 927–936, Jul. 1997, Accessed: Apr. 09, 2025. [Online]. Available:
https://umj.imath.kiev.ua/index.php/umj/article/view/5083