@article {Grissom66, author = {Terry V. Grissom and James L. Kuhle and Carl H. Walther}, title = {Diversification works in real estate, too}, volume = {13}, number = {2}, pages = {66--71}, year = {1987}, doi = {10.3905/jpm.1987.409095}, publisher = {Institutional Investor Journals Umbrella}, issn = {0095-4918}, URL = {https://jpm.pm-research.com/content/13/2/66}, eprint = {https://jpm.pm-research.com/content/13/2/66.full.pdf}, journal = {The Journal of Portfolio Management} }