TY  - JOUR
TI  - Semiparametric least squares (SLS) and weighted SLS estimation of single-index models
AU  - Hidehiko Ichimura
JO  - Journal of Econometrics
PY  - 1993
VL  - 58
IS  - 1-2
DO  - 10.1016/0304-4076(93)90114-k
UR  - https://doi.org/10.1016/0304-4076(93)90114-k
ER  -