@article{ref1,
title="On question wording and stability of response",
journal="Social science research",
year="1976",
author="Hitlin, Robert",
volume="5",
number="1",
pages="39-41",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0049-089X",
doi="10.1016/0049-089X(76)90034-X",
url="http://dx.doi.org/10.1016/0049-089X(76)90034-X"
}