{"identifier":"nobleid:/w1/20260521/AFDF2838","arkIdentifier":"ark:/48914/w1/20260521/AFDF2838","version":1,"workTitle":"Unsolved problems and forgotten facts","workType":"Journal Article","authors":"Unknown","description":null,"workUrl":null,"existingDoi":"10.1109/ee.1957.6443006","createdAt":"2026-05-21T12:26:41.115154Z","canonicalUrl":"https://nobleid.org/ark:/48914/w1/20260521/AFDF2838.v1"}