Borgers, N./Hox, J., 2001: Item nonresponse in questionnaire research with children. In: Journal of official statistics, 17, 321-335.
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Hox, J. J., & Borgers, N. (2001). Item nonresponse in questionnaire research with children. Journal of Official Statistics, 17(2), 321- 335. https://hdl.handle.net/1874/23617
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