AUTHOR=Ogihara Yuji 

TITLE=Social Security Number Holders in the United States, 1909-2019

JOURNAL=Frontiers in Big Data

VOLUME=Volume 4 - 2021

YEAR=2021

URL=https://www.frontiersin.org/journals/big-data/articles/10.3389/fdata.2021.802256

DOI=10.3389/fdata.2021.802256

ISSN=2624-909X