@article{ref1,
title="Data quality problems in travel surveys: an international overview",
journal="Transportation research circular",
year="2000",
author="de Heer, W and Moritz, G.",
volume="",
number="E-C008",
pages="21 p.-21 p.",
abstract="Nonresponse in household surveys is a matter of great concern. Data quality may be affected by nonresponse. Not only the attitude of the public, but also sample and survey design, fieldwork approach and characteristics of organization influence response results. Weighting techniques cannot reduce nonresponse bias totally. This is explained in general and specific for Travel Surveys in 13 countries in this workshop resource paper.<p />",
language="",
issn="0097-8515",
doi="",
url="http://dx.doi.org/"
}