@techreport{Koerber2007,
author = {Koerber, K.},
title= {Comparison of ACS and ASEC data on geographic mobility: 2004},
year = {2007},
URL = {https://www.census.gov/content/dam/Census/library/working-papers/2007/acs/2007_Koerber_01.pdf.},
publisher = {US Census Bureau},
address = {Washington, D.C},
}