https://s3.us-east-1.amazonaws.com/libra-easystore-production.lib.virginia.edu/libraetd/fn106z47k/Romig_Dissertation.pdf?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Checksum-Mode=ENABLED&X-Amz-Credential=AKIAIKM6AN7XWPD7CIUA%2F20260812%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20260812T221159Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&x-id=GetObject&X-Amz-Signature=2122f21febf2a4bb0d3353514f50a145985ae3b77f8f83484eaddaf8a8d6596d