@article{Andreev2004,
author = {Andreev, K.F.},
title= {A method for estimating size of population aged 90 and over with application to the US Census 2000 data},
year = {2004},
doi = {10.4054/DemRes.2004.11.9},
volume = {11},
number = {9},
pages = {235‒262},
}