@inbook{Lepkowski2002,
author = {Lepkowski, J.M. and Couper, M.P.},
title= {Nonresponse in the second wave of longitudinal household surveys},
year = {2002},
editor = {Groves, R.M.},
editor = {Dillman, D.A.},
editor = {Entinge, J.L.},
editor = {Little, R.J.A.},
booktitle = {Survey nonresponse},
address = {NY},
publisher = {John Wiley and Sons},
pages = {121−134},
}