Stata Tip 105: Daily Dates with Missing Days

Little R. J. A. , and Rubin D. B. 2002. Statistical Analysis with Missing Data. 2nd ed. Hoboken, NJ: Wiley.

Seastrom M. M. , Kaufman S. , and Lee R. 2002. Appendix B: Evaluating the impact of imputations for item nonresponse. In NCES Statistical Standards (NCES 2003601), ed. Seastrom M. M. National Center for Education Statistics, Institute of Education Sciences. http://nces.ed.gov/statprog/2002/appendixb.asp.