00358nam a2200133Ia 4500001000500000005001700005008004100022020001500063082001700078100002200095245003800117260002600155650004300181583320261006003908.0120911s9999    xx            000 0 und d  a0442222858  a629.8312 ELB  aElbert,Theodore F  aEstimation and control of systems  aVan Nostrand Reinhold  aControl theory    2. Estimation theory