@techreport{Blanc1990,
author = {Blanc, A.K. and Rutenberg, N.},
title= {Assessment of the qualitative of data at first sex, age at first marriage and age at first birth. Demographic and Health Surveys. In Assessment of DHS-I Data Quality},
year = {1990},
address = {Columbia, Maryland},
number = {DHS Methodological Reports 1},
}