{"work": "W000014", "title": "Homotopy invariant algebraic structures on topological spaces", "authors": ["Boardman, J. M.", "Vogt, R. M."], "authors_display": "Boardman, J. M., Vogt, R. M.", "author_metadata_status": "available", "original_source_url": null, "source_metadata_status": "unidentified", "metadata_review_flags": ["source_unidentified"], "semantics": "source attribution display only; no identity merge, citation-edition or mathematical proof approval"}