2026-09-29T03:16:49Z https://www.ideals.illinois.edu/oai-pmh IDEALS @ University of Illinois Urbana-Champaign https://www.ideals.illinois.edu/oai-pmh 2.0 ideals@library.illinois.edu 2022-06-06T21:13:21Z persistent YYYY-MM-DDThh:mm:ssZ