@article{Klausch2013,
author = {Klausch, T. and Hox, J.J. and Schouten, B.},
title= {Measurement effects of survey mode on the equivalence of attitudinal rating scale questions},
year = {2013},
doi = {10.1177/0049124113500480},
journal = {Sociological Methods & Research},
volume = {42},
number = {3},
pages = {227--263},
}