Frick, J. R., & Grabka, M. M. (2003). Missing income data in the german SOEP: Incidence, imputation and its impact on the income distribution. DIW.
Chicago Style (17th ed.) CitationFrick, Joachim R., and Markus M. Grabka. Missing Income Data in the German SOEP: Incidence, Imputation and Its Impact on the Income Distribution. Berlin: DIW, 2003.
MLA (9th ed.) CitationFrick, Joachim R., and Markus M. Grabka. Missing Income Data in the German SOEP: Incidence, Imputation and Its Impact on the Income Distribution. DIW, 2003.
Warning: These citations may not always be 100% accurate.