which scientist is known for the wigner semicircle distribution and the wigner-wilkins spectra ?
select distinct var_uri where brack_open var_uri dbo_knownFor dbr_Wigner_semicircle_distribution sep_dot var_uri rdf_type dbo_Scientist sep_dot var_uri dbo_knownFor dbr_Wigner-Wilkins_Spectra sep_dot brack_close