@inbook{Merkle2002,
author = {Merkle, D.M. and Edelman, M. },
title= {Nonresponse in exit polls: A comprehensive analysis},
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 = {243−258},
}