@article{YJOR_2020_30_2_a1,
     author = {Rohan Mishra and Bhagwat Ram},
     title = {Portfolio {Selection} {Using} {R}},
     journal = {Yugoslav journal of operations research},
     pages = {137 },
     year = {2020},
     volume = {30},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/YJOR_2020_30_2_a1/}
}