2 citations to https://www.mathnet.ru/rus/znsl689

1. David E. Hong, Dan Ismailescu, Alex Kwak, Grace Y. Park, “On the smallest area $(n-1)$-gon containing a convex n-gon”, Period Math Hung, 87:2 (2023), 394  
2. Uuganbaatar Ninjbat, ““The Four Strongest” at the National Museum of Mongolia”, Math Intelligencer, 42:2 (2020), 9