{"id":"S85142098","label":"Variational principles","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85142098","normalized_label":"variational principles","broader":["http://id.loc.gov/authorities/subjects/sh85018809"],"aliases":["Extremum principles","Minimal principles","Variation principles"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85142098","provider":"lcsh","revision":"10b8bd4872e6589c","taxonomy_revision":"f050b5d4780b1289","title":"Variational principles","url":"/topics/S85142098","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"864906633812263428","address_version":"morton4x16-v1","coordinates":[0,20,19625,18432],"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}