@inbook{Hagenaars1982,
author = {Hagenaars, J.A. and Heinen, T.G.},
title= {Effects of role-independent interviewer characteristics on responses},
year = {1982},
editor = {Dijkstra, W.},
editor = {van der Zouwen, J.},
booktitle = {Response Behaviour in the Survey-Interview},
address = {London},
publisher = {Academic Press},
pages = {91--130},
}