which scientist is known for the rao–blackwell theorem and the cramér–rao bound ?
select distinct var_uri where brack_open var_uri dbo_knownFor dbr_Rao–Blackwell_theorem sep_dot var_uri rdf_type dbo_Scientist sep_dot var_uri dbo_knownFor dbr_Cramér–Rao_bound sep_dot brack_close