Baek C, Jackman T. Safe-haven assets for U.S. equities during the 2020 COVID-19 bear market. Econ Bus Lett [Internet]. 2021 Aug. 2 [cited 2024 Dec. 4];10(3):331-5. Available from: https://reunido.uniovi.es/index.php/EBL/article/view/15335