Whitefield, S., Vachudova, M., Steenbergen, M., & Rohrschneider, R. (2006). Do Expert Surveys Produce Consistent Estimates of Party Stances on European Integration? Comparing Expert Surveys in the Difficult Case of Central and Eastern Europe. Elsevier.

Whitefield, S., M. Vachudova, M. Steenbergen, and R. Rohrschneider. Do Expert Surveys Produce Consistent Estimates of Party Stances on European Integration? Comparing Expert Surveys in the Difficult Case of Central and Eastern Europe. Elsevier, 2006.

Whitefield, S., et al. Do Expert Surveys Produce Consistent Estimates of Party Stances on European Integration? Comparing Expert Surveys in the Difficult Case of Central and Eastern Europe. Elsevier, 2006.