{"title": "Soft econometric modelling", "subtitle": "the example of fuzzy methods", "authors": [{"key": "/authors/OL4427390A"}], "publish_date": "1990", "publishers": ["Karl Marx University of Economics"], "series": ["Working paper / Karl Marx University of Economics -- 1990/1", "Working paper -- 1990/1."], "contributions": ["Ko ro si, Ga bor.", "Ma tya s, La szlo ."], "languages": [{"key": "/languages/eng"}], "publish_country": "hu ", "by_statement": "by Sa ndor Jo zsef, Ga bor Ko ro si and La szlo  Ma tya s.", "publish_places": ["Budapest"], "type": {"key": "/type/edition"}, "source_records": ["marc:talis_openlibrary_contribution/talis-openlibrary-contribution.mrc:212432343:680"], "key": "/books/OL13876532M", "works": [{"key": "/works/OL10634034W"}], "latest_revision": 3, "revision": 3, "created": {"type": "/type/datetime", "value": "2008-09-01T22:35:03.749616"}, "last_modified": {"type": "/type/datetime", "value": "2026-06-06T20:26:56.602020"}}