BIENIEK, Milena. The Pandemic-Type Demand Shocks in the Mean-Variance Newsvendor Problem. Management and Production Engineering Review, [S. l.], v. 13, n. 1, p. 52–61, 2022. DOI: 10.24425/mper.2022.140876. Disponível em: https://wydawnictwo.pan.pl/index.php/mper/article/view/5457. Acesso em: 20 sep. 2026.