@article{Fitzgerald1998,
author = {Fitzgerald, John and Gottschalk, Peter and Moffitt, Robert},
title= {An analysis of sample attrition in panel data: The Michigan Panel Study of Income Dynamics},
year = {1998},
doi = {10.2307/146433},
journal = {The Journal of Human Resources},
volume = {33},
number = {2},
pages = {251--299},
}