@article{Velema1991,
author = {Velema, J.P. and Blettner, M. and Restrepo, M. and Munoz, N.},
title= {The evaluation of agreement by means of log’linear models: Proxy interviews on reproductive history among floriculture workers in Colombia},
year = {1991},
doi = {10.1097/00001648-199103000-00004},
volume = {2},
number = {2},
pages = {107--115},
}