https://ntrs.nasa.gov/citations/20240014245
Authors. Webster, Knudtson, Aranyos, Nufer, Felt & Jeanes
Venue. — NASA technical reports record
How the Institute flags it
frontier 1 time established 1 time
This source carries more than one flag across the corpus. That is not an inconsistency to resolve: the same work can be established evidence for one claim and frontier evidence for another, and the flag belongs to the use rather than to the source.