REFERENCES
- AGARWAL , G. C. , and STUDDEN , W. J. , 1980 , Ann. Statist. , 8 , 1307 .
- BENEDETTI , J. , 1977 , J. Royal Statist. Soc. , B , 39 , 248 .
- CHENG , K. F. , and LIN , P. E. , 1981 , Z. Wahrscheinlichkeitstheorie verw. Gebiete , 57 , 223 .
- COLLOMB , G. , 1981 , Int. Statist. Rev. , 49 , 75 ; 1985, Statistics, 16, 309 .
- COX , D. D. , 1984 , SIAM J. Numer. Analy. , 21 , 789 .
- DEVROYE , L. , and GYORFI , L. , 1985 , Nonparametrk Density Estimation L1 View ( New York Wiley ).
- GASSER , TH. , and MULLER , H. G. , 1979 , Kernel estimation of regression functions . Smoothing Techniques for Curve Estimation , edited by Th. Gasser and M. Rosenblatt, Lecture Notes in Mathematics , Vol. 757 ( Berlin Springer-Verlag ) .
- GALKOWSKI , T. , and RUTKOWSKI , L. , 1985 , Proc. Inst. elec. electron. Engrs , 73 , 942 ; 1986, IEEE Trans, autom. Control, 31, 785 .
- GEORGIEV , A. A. , 1984a , System Control Lett. , 4 , 173 ; 1984b, Ann. Inst. Stat. Math., 36, 455 .
- GEORGIEV , A. A. , and GREBLICKI , W. , 1986 , J. Stat. Planning and Inference , 13 , 1 .
- GREDLICKI , W. , PA WALK , M. , 1985 , Ann. Inst. Stat. Math. , 37 , 443 ; 1987, Int. J. Control, 45, 343 .
- GYORFI , L. , 1981 , Problems of Control and Information Theory , 10 , 43 .
- IURAGIMOV , I. A. , and HASMINSKI , R. Z. , 1982 , Theory Probab. Appls. , XXVII , 81 (in Russian) .
- KORNEITSCHUK , N. P. , 1987 , Exact Constants in Approximation Theory ( Moscow Nauka ), in Russian .
- LAUNER , R. L. , and WILKINSON , G. N. , 1979 , Robustness in Statistics ( New York Academic Press ).
- LJUNG , L. , 1987 , System Identification. Theory for the User ( Englewood Cliffs , NJ Prentice-Hall ).
- NUSSBAUM , M. , 1985 , Ann. Statist. , 13 , 984 .
- POLIS , M. P. , and GOODSON , R. E. , 1976 , Proc. Inst. elec. electron. Engng. , 64 , 43 .
- PRIESTLEY , M. B. , and CHAO , M. T. , 1972 , J. Royal Statist. Soc , B34 , 385 .
- RAFAJLOWICZ , E. , 1984 a , IEEE Trans, autom. Control , 29 , 631 ; 1984 b, System Control Lett., 4, 91; 1987, Statistics Probab. Lett., 5, 219 .
- RUTKOWSKl , L. , 1982 , IEEE Trans, autom. Control , 27 , 225 ; 1986, IEEE Trans. Circuits Syst., 33,812 .
- SODERSTROM , T. , and STOICA , P. , 1989 , System Identification ( New York Prentice-Hall International ).
- SCHUSTER , E. , and YAKOWITZ , S. , 1979 , Ann. Statist. , 7 , 139 .
- STONE , C. J. , 1982 , Ann. Statist. , 10 , 1040 .
- TIMAN , A. F. , 1963 , Theory of Approximation of Functions of a Real Variable ( Oxford , U.K. Pergamon ).
- WOLTER , K. M. , and FULLER , W. A. , 1982 , Ann. Statist. , 10 , 539 .
- YOSIIM , K. , 1960 , Lectures on Differential and Integral Equations ( New York Interscience ).