@article {Dyl54, author = {Edward A. Dyl and Stanley A.. Martin, Jr}, title = {Another look at barbells versus ladders}, volume = {12}, number = {3}, pages = {54--59}, year = {1986}, doi = {10.3905/jpm.1986.409056}, publisher = {Institutional Investor Journals Umbrella}, issn = {0095-4918}, URL = {https://jpm.pm-research.com/content/12/3/54}, eprint = {https://jpm.pm-research.com/content/12/3/54.full.pdf}, journal = {The Journal of Portfolio Management} }