{"id":"S90000979","label":"Nonlinear control theory","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh90000979","normalized_label":"nonlinear control theory","broader":["http://id.loc.gov/authorities/subjects/sh85031658","http://id.loc.gov/authorities/subjects/sh85092332"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh90000979","provider":"lcsh","revision":"9b450570a2293c39","taxonomy_revision":"f050b5d4780b1289","title":"Nonlinear control theory","url":"/topics/S90000979","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"883985375683822086","address_version":"morton4x16-v1","coordinates":[0,21,30009,19456],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}