@article{Johnson2018,
author = {Johnson, D.S. and McGonagle, K.A. and Freedman, V.A. and Sastry, N.},
title= {Fifty years of the Panel Study of Income Dynamics: Past, present, and future},
year = {2018},
doi = {10.1177/0002716218809363},
volume = {680},
number = {1},
pages = {9--28},
}