https://creativecommons.org/licenses/by/3.0CC BY 3.0 Creative Commons Attribution 3.0 truetrue English LeeJoon-gi & Kim Ji-eun in 2022 determination method: SHA-1
https://creativecommons.org/licenses/by/3.0CC BY 3.0 Creative Commons Attribution 3.0 truetrue English LeeJoon-gi & Kim Ji-eun in 2022 determination method: SHA-1