@article {Bernstein4, editor = {Bernstein, Peter L.}, title = {Plus Ca Change?}, volume = {7}, number = {3}, pages = {4--4}, year = {1981}, doi = {10.3905/jpm.7.3.4}, publisher = {Institutional Investor Journals Umbrella}, issn = {0095-4918}, URL = {https://jpm.pm-research.com/content/7/3/4}, eprint = {https://jpm.pm-research.com/content/7/3/4.full.pdf}, journal = {The Journal of Portfolio Management} }