@article{202105.0031, doi = {10.20944/preprints202105.0031.v1}, url = {https://doi.org/10.20944/preprints202105.0031.v1}, year = 2021, month = {May}, publisher = {Preprints}, author = {Tony S. Wirjanto and Danqiao Guo and Chengguo Weng}, title = {Taking Stock of Some Recent and Notable Contribution to Research in Portfolio Analysis}, journal = {Preprints} }