Pulak Swain and A. K. Ojha, Multi-Criteria Based Robust Markowitz Model under Box Uncertainty. journal = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology. January 2021, vol. 170(2). 14 - 17 [viewed 21 September 2024]. Available from: https://publications.waset.org/pdf/10011830.