@inproceedings{Roberts2006,
author = {Roberts, C. and Jäckle, A. and Lynn, P.},
title= {Causes of mode effects: Separating out interviewer and stimulus effects in comparisons of face-to-face and telephone surveys},
year = {2006},
URL = {http://repository.essex.ac.uk/id/eprint/8037},
address = {Montréal, Québec},
}