@article{Chen2003,
author = {Xiaohong Chen and Oliver Linton and Van Keilegom, Ingred},
title = {Estimation of semiparametric models when the criterion function is not smooth},
journal = {Econometrica},
year = {2003},
month = {Sep},
volume = {71},
number = {5},
pages = {1591-1608},
url = {},
}