1. On the nonparametric estimation of regression functions;Benedetti;J. Roy. Statist. Soc. Ser. B.,1977
2. Estimation of isotonic regression;Brunk,1970
3. Nonparametric estimation of a regression function;Cheng;Z. Wahrsch. verw. Gebiete,1981
4. Strong consistency of nearest neighbor regression function estimators;Cheng;J. Multivariate Anal.,1984
5. Nonparametric estimation of a smooth regression function;Clark;J. Roy. Statitst. Soc. Ser. B,1977